阅读说明：本技术 基于光通信测试的多工位扫描及点测共享一体化系统及方法 (Multi-station scanning and point-testing sharing integrated system and method based on optical communication test ) 是由 刘利平 袁佳鑫 王正伍 于 2021-01-19 设计创作，主要内容包括：本发明公开了一种基于光通信测试的多工位扫描及点测共享一体化系统及方法,包括：宽带光源、单点光源、第一光开关、第二光开关、第三光开关、第四光开关、第一偏振控制器、光分路器、光谱仪及第一测试盒；第一测试盒与第一PC端连接；光谱仪与第一PC端连接,宽带光源与第一光开关连接,第一光开关与第一测试盒连接,第一测试盒分别与第一被测器件及第二光开关连接,第一被测器件与第二光开关连接,单点光源与第三光开关连接,第三光开关与光分路器连接,光分路器与第一测试盒连接；第四光开关与第一测试盒连接,光谱仪与第四光开关连接。本发明能完成多个测试工位的扫描和点测共享,大幅度减少生产成本,有效提高设备利用率及光通信测试效率。(The invention discloses a multi-station scanning and point testing sharing integrated system and a method based on optical communication testing, which comprises the following steps: the device comprises a broadband light source, a single-point light source, a first optical switch, a second optical switch, a third optical switch, a fourth optical switch, a first polarization controller, an optical splitter, a spectrometer and a first test box; the first test box is connected with the first PC end; the spectrometer is connected with a first PC end, the broadband light source is connected with a first optical switch, the first optical switch is connected with a first test box, the first test box is respectively connected with a first tested device and a second optical switch, the first tested device is connected with the second optical switch, the single-point light source is connected with a third optical switch, the third optical switch is connected with an optical splitter, and the optical splitter is connected with the first test box; the fourth optical switch is connected with the first test box, and the spectrometer is connected with the fourth optical switch. The invention can complete the scanning and point measurement sharing of a plurality of test stations, greatly reduce the production cost and effectively improve the equipment utilization rate and the optical communication test efficiency.)

1. The utility model provides a multistation scanning and point are surveyed and are shared integration system based on optical communication test which characterized in that includes: the device comprises a broadband light source, a single-point light source, a first optical switch, a second optical switch, a third optical switch, a fourth optical switch, a first polarization controller, an optical splitter, a spectrometer and a first test box; the first test box is electrically connected and network-connected with the first PC end through a serial port line and a concentrator; the spectrometer is electrically connected with the first PC end, the broadband light source is connected with the first optical switch through electrical signals and optical signals, the first optical switch is connected with the first test box through electrical signals and optical signals, the first test box is connected with the first tested device through optical signals, the first test box is connected with the second optical switch through electrical signals and optical signals, the first tested device is connected with the second optical switch through optical signals, the single-point light source is connected with the third optical switch through electrical signals and optical signals, the third optical switch is connected with the optical splitter through optical signals, and the optical splitter is connected with the first test box through optical signals; and the fourth optical switch is connected with the first test box through electrical signals and optical signals, and the spectrometer is connected with the fourth optical switch through electrical signals and optical signals.

2. The integrated system of claim 1, further comprising a second testing box, a fifth optical switch, and a second polarization controller; the second test box is electrically connected and network-connected with the second PC end through a serial port line and a concentrator; the spectrometer is electrically connected with the second PC end, the first optical switch is in electrical signal and optical signal connection with the second test box, the second test box is in optical signal connection with a second device under test, the second test box is in electrical signal and optical signal connection with the fifth optical switch, and the second device under test is in electrical signal and optical signal connection with the fifth optical switch; the optical splitter is in optical signal connection with the second test box, the fourth optical switch is in electrical signal and optical signal connection with the second test box, and the second polarization controller is in electrical signal and optical signal connection with the second test box.

3. The integrated system for multi-station scanning and point testing based on optical communication testing of claim 1, wherein the first testing box comprises a sixth optical switch, a seventh optical switch, an eighth optical switch, a ninth optical switch, a tenth optical switch, an eleventh optical switch and a twelfth optical switch; the sixth optical switch is electrically and optically connected to the first optical switch, the seventh optical switch is electrically and optically connected to the sixth optical switch, the eighth optical switch is electrically and optically connected to the seventh optical switch, the ninth optical switch and the tenth optical switch are both electrically and optically connected to the eighth optical switch, the first polarization controller is electrically and optically connected to the tenth optical switch, the input terminal of the first device under test is optically connected to the first polarization controller, the ninth optical switch is electrically and optically connected to the second optical switch, the eleventh optical switch is electrically and optically connected to the tenth optical switch and the ninth optical switch, respectively, and the twelfth optical switch is electrically and optically connected to the eleventh optical switch, the fourth optical switch is connected to the eleventh optical switch by an electrical signal and an optical signal.

4. The integrated system for multistation scanning and point testing based on optical communication test according to claim 3, wherein the first test box further comprises a coupler and a first optical power meter; the coupler is respectively in optical signal connection with the sixth optical switch and the optical splitter, and the first optical power is in electrical signal and optical signal connection with the twelfth optical switch.

5. The integrated system for multi-station scanning and point testing based on optical communication testing of claim 4, wherein the first testing box further comprises a second optical power meter; and the second optical power meter is in optical signal connection with the coupler.

6. The integrated system for multi-station scanning and point testing based on optical communication testing according to claim 2, wherein the first testing box comprises a first chassis, first handles are respectively arranged on two sides of the top of the first chassis, and a cooling fan is arranged on one side surface of the first chassis; the other side surface of the first case is also provided with a first power switch and a wiring terminal group, and the wiring terminal group is used for realizing the connection of the first test box with the broadband light source, the single-point light source, the first optical switch, the second optical switch, the third optical switch, the fourth optical switch, the first polarization controller, the optical splitter and the electric signals and optical signals of the spectrometer.

7. The integrated optical communication test-based multi-station scanning and spot testing system according to claim 6, wherein the second testing box has the same structure as the first testing box.

8. A method comprising a multi-station scanning and point testing sharing integrated system based on optical communication testing according to any one of claims 1 to 7, wherein the method comprises:

controlling the first optical switch to evenly distribute the broadband light source to a plurality of test stations;

and respectively carrying out scanning test and single-point test on the tested device in a plurality of test stations.

9. A method according to claim 8, wherein said performing scan testing and single point testing of the device under test in each of the plurality of test stations comprises:

in a first test station, controlling the first optical switch to be switched to a light path channel corresponding to the broadband light source;

controlling the first test box to receive a scanning light source signal output by the broadband light source and transmit the scanning light source signal to the first device under test;

controlling the first test box to receive scanning light source signals output by a plurality of channels of the first device under test;

scanning light source signals of a plurality of channels of a first device under test output by the first test box are respectively obtained, scanning analysis is carried out according to the spectrograph, and scanning data of the first device under test are determined;

controlling the third optical switch to switch the output configuration wavelength of the single-point light source;

controlling the optical splitter to be switched to the optical path channel corresponding to the first test station;

controlling the first test box to receive a single-point light source signal output by the single-point light source and transmit the single-point light signal to the first device under test;

controlling the second optical switch to switch a plurality of output channels corresponding to the first device under test, and simultaneously opening a first polarization controller; the single-point optical signal returns to the first test box through the second optical switch;

respectively obtaining corresponding output optical power parameters in a plurality of output channels of the first device under test in the first test box to obtain polarization dependent loss data of the plurality of channels of the first device under test;

controlling the second optical switch to be closed, and returning the single-point light source signal to the first test box to obtain return loss data of the input end of the first tested device;

and the single-point light source signal is output from the first test box and then transmitted to a plurality of channel output ends of the first device under test, and is output from the input end of the first device under test, so that the first test box is controlled to cut off and channel return loss data of the first device under test are obtained.

Technical Field

The invention relates to the technical field of optical communication testing, in particular to a multi-station scanning and point testing sharing integrated system based on optical communication testing.

Background

In a traditional optical communication test, different stations and systems are used for point measurement and scanning in test stations, and scanning test is generally carried out on the scanning stations by adopting a set of adjustable light source, a scanning type polarization controller and a plurality of power meters; point measurement is generally configured with a single-point light source, a single-point polarization controller and a multi-channel power meter for single-point measurement; in addition, the conventional testing method also requires related technicians to manually build stations through optical devices, so as to achieve the purpose of testing the optical communication parameters such as IL, RL, ISO and the like. The method has the advantages of low equipment utilization rate, large amount of manpower and material resources for supervision, and greatly improved staff training and equipment investment cost. Therefore, the invention of an integrated test system for testing an optical communication device is a problem to be solved by those skilled in the art.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a multi-station scanning and point testing sharing integrated system based on optical communication testing, aiming at the above-mentioned defects in the prior art.

The invention discloses a multistation scanning and point testing sharing integrated system based on optical communication testing, which comprises a broadband light source, a single-point light source, a first optical switch, a second optical switch, a third optical switch, a fourth optical switch, a first polarization controller, an optical splitter, a spectrometer and a first testing box, wherein the broadband light source is connected with the single-point light source through the first optical switch; the first test box is electrically connected and network-connected with the first PC end through a serial port line and a concentrator; the spectrometer is electrically connected with the first PC end, the broadband light source is connected with the first optical switch through electrical signals and optical signals, the first optical switch is connected with the first test box through electrical signals and optical signals, the first test box is connected with the first tested device through optical signals, the first test box is connected with the second optical switch through electrical signals and optical signals, the first tested device is connected with the second optical switch through optical signals, the single-point light source is connected with the third optical switch through electrical signals and optical signals, the third optical switch is connected with the optical splitter through optical signals, and the optical splitter is connected with the first test box through optical signals; and the fourth optical switch is connected with the first test box through electrical signals and optical signals, and the spectrometer is connected with the fourth optical switch through electrical signals and optical signals.

Preferably, the multistation scanning and point-testing sharing integrated system based on the optical communication test further comprises a second test box, a fifth optical switch and a second polarization controller; the second test box is electrically connected and network-connected with the second PC end through a serial port line and a concentrator; the spectrometer is electrically connected with the second PC end, the first optical switch is in electrical signal and optical signal connection with the second test box, the second test box is in optical signal connection with a second device under test, the second test box is in electrical signal and optical signal connection with the fifth optical switch, and the second device under test is in optical signal connection with the fifth optical switch; the optical splitter is in optical signal connection with the second test box, the fourth optical switch is in electrical signal and optical signal connection with the second test box, and the second polarization controller is in electrical signal and optical signal connection with the second test box.

Preferably, the first test cartridge comprises a sixth optical switch, a seventh optical switch, an eighth optical switch, a ninth optical switch, a tenth optical switch, an eleventh optical switch and a twelfth optical switch; the sixth optical switch is electrically and optically connected to the first optical switch, the seventh optical switch is electrically and optically connected to the sixth optical switch, the eighth optical switch is electrically and optically connected to the seventh optical switch, the ninth optical switch and the tenth optical switch are both electrically and optically connected to the eighth optical switch, the first polarization controller is electrically and optically connected to the tenth optical switch, the input terminal of the first device under test is optically connected to the first polarization controller, the ninth optical switch is electrically and optically connected to the second optical switch, the eleventh optical switch is electrically and optically connected to the tenth optical switch and the ninth optical switch, respectively, and the twelfth optical switch is electrically and optically connected to the eleventh optical switch, the fourth optical switch is connected to the eleventh optical switch by an electrical signal and an optical signal.

Preferably, the first test box further comprises a coupler and a first optical power meter; the coupler is respectively in optical signal connection with the sixth optical switch and the optical splitter, and the first optical power is in electrical signal and optical signal connection with the twelfth optical switch.

Preferably, the first test cartridge further comprises a second optical power meter; and the second optical power meter is in optical signal connection with the coupler.

Preferably, the first test box comprises a first case, two sides of the top of the first case are respectively provided with a first handle, and one side surface of the first case is provided with a cooling fan; the other side surface of the first case is also provided with a first power switch and a wiring terminal group, and the wiring terminal group is used for realizing the connection of the first test box with the broadband light source, the single-point light source, the first optical switch, the second optical switch, the third optical switch, the fourth optical switch, the first polarization controller, the optical splitter and the electric signals and optical signals of the spectrometer.

Preferably, the second cartridge has the same structure as the first cartridge.

In a second aspect, the present invention discloses a method, including the integrated system for multi-station scanning and point test based on optical communication test as the first aspect, the method includes:

controlling the first optical switch to evenly distribute the broadband light source to a plurality of test stations;

and respectively carrying out scanning test and single-point test on the tested device in a plurality of test stations.

Preferably, the performing the scan test and the single-point test on the device under test in the plurality of test stations respectively comprises:

in a first test station, controlling the first optical switch to be switched to a light path channel corresponding to the broadband light source;

controlling the first test box to receive a scanning light source signal output by the broadband light source and transmit the scanning light source signal to the first device under test;

controlling the first test box to receive scanning light source signals output by a plurality of channels of the first device under test;

scanning light source signals of a plurality of channels of a first device under test output by the first test box are respectively obtained, scanning analysis is carried out according to the spectrograph, and scanning data of the first device under test are determined;

controlling the third optical switch to switch the output configuration wavelength of the single-point light source;

controlling the optical splitter to be switched to the optical path channel corresponding to the first test station;

controlling the first test box to receive a single-point light source signal output by the single-point light source and transmit the single-point light signal to the first device under test;

controlling the second optical switch to switch a plurality of output channels corresponding to the first device under test, and simultaneously opening a first polarization controller; the single-point optical signal returns to the first test box through the second optical switch;

respectively obtaining corresponding output optical power parameters in a plurality of output channels of the first device under test in the first test box to obtain polarization dependent loss data of the plurality of channels of the first device under test;

controlling the second optical switch to be closed, and returning the single-point light source signal to the first test box to obtain return loss data of the input end of the first tested device;

and the single-point light source signal is output from the first test box and then transmitted to a plurality of channel output ends of the first device under test, and is output from the input end of the first device under test, so that the first test box is controlled to cut off and channel return loss data of the first device under test are obtained.

The multistation scanning and point testing sharing integrated system and method based on the optical communication test have the following beneficial effects that: the device comprises a broadband light source, a single-point light source, a first optical switch, a second optical switch, a third optical switch, a fourth optical switch, a first polarization controller, an optical splitter, a spectrometer and a first test box; the first test box is electrically connected and network-connected with the first PC end through a serial port line and a concentrator; the spectrometer is electrically connected with the first PC end, the broadband light source is connected with the first optical switch through electrical signals and optical signals, the first optical switch is connected with the first test box through electrical signals and optical signals, the first test box is connected with the first tested device through optical signals, the first test box is connected with the second optical switch through electrical signals and optical signals, the first tested device is connected with the second optical switch through optical signals, the single-point light source is connected with the third optical switch through electrical signals and optical signals, the third optical switch is connected with the optical splitter through optical signals, and the optical splitter is connected with the first test box through optical signals; and the fourth optical switch is connected with the first test box through electrical signals and optical signals, and the spectrometer is connected with the fourth optical switch through electrical signals and optical signals. The first optical switch is used for expanding a plurality of test stations to carry out scanning test; the broadband light source is used for providing scanning light source signal input within a preset wavelength range to carry out scanning test; the single-point light source is used for providing single-point light source signal input and carrying out single-point test; a scanning light source signal output by the broadband light source passes through the first optical switch to switch a first test station, after passing through the first test box, the second optical switch switches a plurality of output channels of the first device under test, and the spectrometer is used for receiving optical signal data of the plurality of output channels of the first device under test, so as to obtain scanning data of an optical communication test; a single-point light source signal output by the single-point light source passes through the third optical switch and the optical splitter and is output to the first test box and the first polarization controller, the single-point light source signal is output from the first test box and is transmitted to the input end of the first device under test, and the single-point light source signal is switched among a plurality of output channels of the first device under test through the second optical switch and then returns to the first test box through the second optical switch, so that polarization-dependent loss data of the first device under test are obtained; the channel of the second optical switch is closed, and the first test box obtains return loss data of the input end of the first tested device; and the single-point light source signal is output from the first test box and then transmitted to a plurality of channel output ends of the first device under test, and is output from the input end of the first device under test, so that the first test box is controlled to cut off and channel return loss data of the first device under test are obtained. Therefore, the invention can improve the management convenience, integrate the equipment, occupy less space and have less jumper wires; the scanning and point measurement sharing of a plurality of testing stations in the optical communication test are completed, the staff training and equipment investment cost is greatly reduced, and the equipment utilization rate and the optical communication test efficiency are effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:

FIG. 1 is a diagram of a system architecture of a multi-station scanning and point-testing shared integrated system based on optical communication testing according to a preferred embodiment of the present invention;

FIG. 2 is a diagram of a system architecture of a multi-station scanning and point-testing shared integrated system based on optical communication testing according to another preferred embodiment of the present invention;

FIG. 3 is a system diagram of a multi-station scanning and point-testing sharing integrated system based on optical communication testing according to a preferred embodiment of the present invention;

FIG. 4 is a front view of a first testing box of the multi-station scanning and spot testing based on optical communication testing sharing integrated system according to the preferred embodiment of the present invention;

FIG. 5 is a rear view of a first testing box of the multi-station scanning and spot testing based optical communication testing sharing integrated system according to the preferred embodiment of the present invention;

FIG. 6 is a flowchart of a parallel scanning and point-testing sharing integrated testing method based on optical communication testing according to a preferred embodiment of the present invention;

FIG. 7 is a flowchart illustrating a parallel scan and point test sharing integrated testing method based on optical communication testing according to another preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

Example one

Fig. 1 shows a preferred embodiment of the present invention, which includes a broadband light source 1, a single-point light source 2, a first optical switch 3, a second optical switch 4, a third optical switch 5, a fourth optical switch 6, a first polarization controller 7, an optical splitter 8, a spectrometer 9, and a first test box 10; the first test box 10 and the first PC end are electrically connected and network-connected through a serial port line and a concentrator; the spectrometer 9 is electrically connected to the first PC terminal, the broadband light source 1 is electrically and optically connected to the first optical switch 3, the first optical switch 3 is electrically and optically connected to the first test box 10, the first test box 10 is optically connected to the first device under test a1, the first test box is electrically and optically connected to the second optical switch 4, the first device under test a1 is optically connected to the second optical switch 4, the single-point light source 2 is electrically and optically connected to the third optical switch, the third optical switch is optically connected to the optical splitter 8, and the optical splitter 8 is optically connected to the first test box 10; the fourth optical switch 6 is connected with the first test box 10 through an electrical signal and an optical signal, and the spectrometer 9 is connected with the fourth optical switch 6 through an electrical signal and an optical signal. Therefore, the invention can complete the scanning and point measurement sharing of the test station, greatly reduce the production cost and effectively improve the equipment utilization rate and the optical communication test efficiency.

Preferably, in this embodiment, the first optical switch 3 is used to expand a plurality of test stations for scan test; the optical splitter 8 is used for expanding a plurality of test stations to perform single-point test; the broadband light source 1 is used for providing scanning light source signal input within a preset wavelength range and carrying out scanning test; the single-point light source 2 is used for providing a spot light signal input and carrying out single-point testing; the scanning light source signal output by the broadband light source 1 passes through the first optical switch 3 to switch a first test station, after passing through the first test box 10, the second optical switch 4 switches a plurality of output channels of the first device under test a1, and the spectrometer 9 is configured to receive optical signal data of the plurality of output channels of the first device under test a1, so as to obtain scanning data of an optical communication test; the single-point light source signal output by the single-point light source 2 passes through the third optical switch 5 and the optical splitter 8, and is output to the first test box 10 and the first polarization controller 7, the single-point light source signal is output from the first test box 10, is transmitted to the input end of the first device under test a1, is switched by the second optical switch 4 among a plurality of output channels of the first device under test a1, and is returned to the first test box 10 through the second optical switch 4, and polarization-dependent loss data PDL of the input end COM of the first device under test a1 is obtained; the channel of the second optical switch 4 is closed, and the first test box obtains return loss data RL at the input end COM of the first device under test a 1; the single-point light source signal is outputted from the first test box 10, passed to the channel outputs of the first device under test a1, and outputted from the input of the first device under test a1, and controls the first test box 10 to intercept and obtain channel return loss data RL at the output of the first device under test a 1. Therefore, the invention can improve the management convenience, integrate the equipment, occupy less space and have less jumper wires; the scanning and point measurement sharing of a plurality of testing stations in the optical communication test are completed, the staff training and equipment investment cost is greatly reduced, and the equipment utilization rate and the optical communication test efficiency are effectively improved.

Preferably, referring to fig. 2, the multi-station scanning and point-testing sharing integrated system based on optical communication testing further includes a second testing box 11, a fifth optical switch 12 and a second polarization controller 13; the second test box 11 and the second PC end are electrically connected and network-connected through a serial port line and a concentrator; the spectrometer 9 is electrically connected to the second PC terminal, the first optical switch 3 is electrically and optically connected to the second test box 11, the second test box 11 is optically connected to the second device under test, the second test box 11 is electrically and optically connected to the fifth optical switch 12, and the second device under test is optically connected to the fifth optical switch 12; the optical splitter 8 is in optical signal connection with the second test box 11, the fourth optical switch 6 is in electrical signal and optical signal connection with the second test box 11, and the second polarization controller 13 is in electrical signal and optical signal connection with the second test box 11. It is understood that the first test box 10 and the second test box 11 are respectively used for acquiring the optical signal data of the output channels of the first device under test a1 and the output channels of the second device under test a2, and the number of test boxes can be set by themselves according to the number of test stations that need to perform parallel scanning, and is not limited in this respect. Therefore, the invention has strong expansibility and can realize the parallel scanning and point measurement sharing of various tested devices. In this embodiment, the first device under test a1 and the second device under test may be full-band, such as CWDM, FWDM, or narrow wavelength, such as DWDM, AWG, MWDM, LanWDM, etc. The invention can adjust the wavelength of the single-point light source 2 and the working wavelength of the optical signal output by the broadband light source 1 according to the type of the device to be tested.

Preferably, in this embodiment, the first optical switch 3 is a1 × 4 optical switch, the optical splitter 8 is a1 × 4PLC optical splitter 8, and the fourth optical switch 6 is a1 × 4 optical switch. The number of channels of the first optical switch 3, the optical splitter 8, and the fourth optical switch 6 is adjusted according to the number of test stations shared by parallel scanning and point testing, and is not particularly limited herein.

Preferably, the first test cartridge 10 includes a sixth optical switch 101, a seventh optical switch 102, an eighth optical switch 103, a ninth optical switch 104, a tenth optical switch 105, an eleventh optical switch 106, and a twelfth optical switch 107; the sixth optical switch 101 is electrically and optically connected to the first optical switch 3, the seventh optical switch 102 is electrically and optically connected to the sixth optical switch 101, the eighth optical switch 103 is electrically and optically connected to the seventh optical switch 102, the ninth optical switch 104 and the tenth optical switch 105 are both electrically and optically connected to the eighth optical switch 103, the first polarization controller 7 is electrically and optically connected to the tenth optical switch 105, the input terminal of the first device under test is optically connected to the first polarization controller 7, the ninth optical switch 104 is electrically and optically connected to the second optical switch 4, and the eleventh optical switch 106 is electrically and optically connected to the tenth optical switch 105 and the ninth optical switch 104, the twelfth optical switch is electrically and optically connected to the eleventh optical switch 106, and the fourth optical switch 6 is electrically and optically connected to the eleventh optical switch 106. It is understood that, in this embodiment, the sixth optical switch 101, the seventh optical switch 102, the eighth optical switch 103, the ninth optical switch 104, the tenth optical switch 105, the eleventh optical switch 106, and the twelfth optical switch 107 are optical switches with at least two channels, and are preferably set as 1 × 2 optical switches for cost saving.

Preferably, the first test box 10 further comprises a coupler 108 and a first optical power meter 109; the coupler 108 is connected to the sixth optical switch 101 and the optical splitter 8 by optical signals, and the first optical power is connected to the twelfth optical switch 107 by electrical signals and optical signals. It is understood that in the present embodiment, the coupler 108 is configured as a2 × 2 coupler.

Preferably, the first test cartridge 10 further comprises a second optical power meter 110; the second optical power meter 110 is connected to the coupler 108 by electrical and optical signals.

Preferably, referring to fig. 4 and 5, the first test box 10 includes a first chassis 111, two sides of the top of the first chassis 111 are respectively provided with a first handle 112, and a surface of one side of the first chassis 111 is provided with a heat dissipation fan; the other side surface of the first cabinet is further provided with a first power switch 113 and a connection terminal group 114, and the connection terminal group is used for connecting the first test box 10 with the broadband light source 1, the single-point light source 2, the first optical switch 3, the second optical switch 4, the third optical switch, the fourth optical switch 6, the first polarization controller 7, the optical splitter 8 and the spectrometer 9 through electrical signals and optical signals. It will be appreciated that the arrangement of the first cassette 10 simplifies system wiring, reduces station equipment space, and promotes station cleanliness.

Preferably, the second cartridge 11 has the same structure as the first cartridge 10.

Preferably, the scanning process of the multistation scanning and point testing sharing integrated system based on the optical communication test of the present invention is as follows: before the system operation starts, configuration files of the scanning range, the step pitch, the point measurement wavelength and various parameter specifications of the spectrometer 9 are configured; when the system works, the broadband light source 1 is in a normally-on state, each testing station sends a requirement to the multi-station scanning and point testing sharing integrated system based on the optical communication test through respective PC end operation and network signals, and the system sequentially executes the testing operation of each testing station according to the sequence of received requests. In this embodiment, when a request is received, if the whole test system is in an idle state, the first test box 10 is controlled to switch the optical signal channel to the input/output port corresponding to the test station that sends the request, and at the same time, the spectrometer 9 is controlled to scan to obtain data, and original data of the data received by the spectrometer 9 is retained, and the next scan request is sequentially executed according to the configuration file.

Preferably, the point measurement process of the multistation scanning and point measurement sharing integrated system based on the optical communication test of the present invention is as follows: when the system executes the spot test request, the system controls the first test box 10 to sequentially switch the optical paths according to the configuration file, and the spot test parameters of the tested device are tested one by one. In this embodiment, when the system receives the request, if the whole test system is in operation or has a request to mount, the system needs to execute all the previous requests and then execute the received test request.

Preferably, referring to fig. 3, the scanning test principle of the multistation scanning and point test sharing integrated system based on optical communication test of the present invention is as follows: the first test box 10 controls the first optical switch 3 to switch to a channel corresponding to a test station; a light source signal emitted by the broadband light source 2 sequentially passes through the first channel of the sixth optical switch 101, the first channel of the seventh optical switch 102, the first channel of the eighth optical switch 103, the first channel of the ninth optical switch 104 and the first polarization controller 7, enters the COM input end of the first device under test a1, and each output channel of the first device under test a1 is inserted into the second optical switch 4; after passing through the first device under test a1 and the second optical switch 4, the light source signal sequentially passes through the second channel of the tenth optical switch 105, the second channel of the eleventh optical switch 106, the second channel of the twelfth optical switch 107, and the channel of the first optical switch 6, which is switched to the corresponding test station, and enters the spectrometer 9. The system switches the channels of the second optical switch 4 in sequence according to the configuration file, so that the optical signal of the channel corresponding to the first device under test a1 passes through the first optical switch 6 and enters the spectrometer 9, and scans the light source signals of the output channel of the first device under test a1 one by one; the system acquires the optical signal data received by the spectrometer 9 during scanning, and stores, analyzes, judges and outputs the test result to the test interface of the corresponding PC terminal.

Preferably, in this embodiment, the broadband light source is configured to output light source wavelengths within a preset range, such as 1520 and 1565; the first power meter 109 and the second power meter 110 are used for testing the signal strength of a wavelength point; the test system is used for acquiring all signal intensities of the tested device in a wavelength range and analyzing data, so that the parameter indexes of the optical communication device product are tested.

Preferably, the point measurement principle of the input end COM polarization-dependent loss data PDL of the multistation scanning and point measurement sharing integrated system based on the optical communication test is as follows: the single-point light source 1 of this embodiment is an 18ch light source with 18 channel interfaces, corresponds to 18 wavelengths, and is connected to the third optical switch 5, i.e., the 1 × 18 optical switch; the light source signal output by the single-point light source 1 sequentially passes through the optical splitter 8, the coupler 108, the second channel of the seventh optical switch 102, the first channel of the eighth optical switch 103, the first channel of the ninth optical switch 104, and the first polarization controller 7, enters the COM input end of the first device under test a1, and then enters the first optical power meter 109 through the second channel of the second optical switch 4, the second channel of the tenth optical switch 105, the second channel of the eleventh optical switch 106, and the first channel of the twelfth optical switch 107. And the system sequentially switches the second optical switch 4 and the third optical switch 5 to switch the output channel of the tested device and the output wavelength of the single-point light source according to the configuration file, so as to complete the test of the polarization dependent loss data PDL of the tested device.

Preferably, the point measurement principle of return loss data RL at the input end COM of the multi-station scanning and point measurement sharing integrated system based on optical communication test is as follows: a light source signal output by the single-point light source 1 sequentially passes through the optical splitter 8, the coupler 108, the second channel of the seventh optical switch 102, the first channel of the eighth optical switch 103, the first channel of the ninth optical switch 104, and the first polarization controller 7, enters the COM input end of the first device under test a1, passes through the first device under test a1, enters the second optical switch 4, and switches the channel of the second optical switch 4 to the 0 channel, so that all channels of the second optical switch 4 are not illuminated, and testing of return loss data RL is avoided; the light source signal is returned to the coupler 108 through the first polarization controller 7, the first channel of the ninth optical switch 104, the first channel of the eighth optical switch 103, and the second channel of the seventh optical switch 102, and then enters the second optical power meter 110. The system switches the channels of the third optical switch 5 in sequence according to the configuration file, and switches different output wavelengths; in the test process, the system obtains the readings of the second optical power meter 110, and stores, analyzes, judges and outputs the test result, thereby obtaining the return loss data RL corresponding to each configuration wavelength at the COM input end of the device under test.

Preferably, the point measurement principle of the channel return loss data RL of the output channel of the multi-station scanning and point measurement sharing integrated system based on the optical communication test is as follows: the light source signal output by the single-point light source 1 passes through the optical splitter 8, the coupler 108, the second channel of the seventh optical switch 102, the second channel of the eighth optical switch 103, the first channel of the tenth optical switch 105, and the second optical switch 4, enters the output channel of the first device under test a1, is output from the COM input end of the first device under test a1, passes through the first polarization controller, the first channel of the ninth optical switch 104, and the eighth optical switch 103, and since the seventh optical switch 102 has been switched to the second channel, the echo signal of the light source returns to pass through the coupler 108, and then enters the second optical power meter 110. The system switches the channels of the second optical switch 4 and the third optical switch 5 in sequence according to the configuration file, switches different output channels and configured test wavelengths of the device to be tested, and obtains the reading of the second optical power meter 110 during the test period to finish testing the output channels of the device to be tested one by one, thereby finishing the point test parameter test of the product configuration. After all the test items are completed, the system gives a final tested device test result according to the test condition.

Example two

The invention discloses a method, which comprises a multi-station scanning and point testing sharing integrated system based on optical communication testing according to the first aspect, and referring to fig. 6, the method comprises the following steps:

s1, controlling the first optical switch to evenly distribute the broadband light source to a plurality of test stations;

and S2, respectively performing scanning test and single-point test on the tested device in a plurality of test stations.

Preferably, the performing the scan test and the single-point test on the device under test in the plurality of test stations respectively comprises:

s21, in a first test station, controlling the first optical switch to be switched to an optical path channel corresponding to the broadband light source;

s22, controlling the first test box to receive the scanning light source signal output by the broadband light source and transmitting the scanning light source signal to the first tested device;

s23, controlling the first test box to receive scanning light source signals output by a plurality of channels of the first device under test;

s24, scanning light source signals of a plurality of channels of a first device under test output by the first test box are respectively obtained, scanning analysis is carried out according to the spectrograph, and scanning data of the first device under test are determined;

s25, controlling the third optical switch to switch the output configuration wavelength of the single-point light source;

s26, controlling the optical splitter to be switched to the optical path channel corresponding to the first test station;

s27, controlling the first test box to receive the single-point light source signal output by the single-point light source and transmit the single-point light signal to the first device under test;

s28, controlling the second optical switch to switch a plurality of output channels corresponding to the first device under test, and simultaneously opening the first polarization controller; the single-point optical signal returns to the first test box through the second optical switch;

s29, respectively obtaining output optical power parameters corresponding to a plurality of output channels of the first device under test in the first test box, and obtaining polarization dependent loss data of the plurality of channels of the first device under test;

s30, controlling the second optical switch to be closed, and returning the single-point light source signal to the first test box to obtain return loss data of the input end of the first device under test;

and S31, the single-point light source signal is output from the first test box, then transmitted to a plurality of channel output ends of the first device under test, and output from the input end of the first device under test, and the first test box is controlled to cut off and obtain channel return loss data of the first device under test.

In summary, the multi-station scanning and point measurement sharing integrated system and method based on optical communication test provided by the present invention includes a broadband light source 1, a single-point light source 2, a first optical switch 3, a second optical switch 4, a third optical switch, a fourth optical switch 6, a first polarization controller 7, an optical splitter 8, a spectrometer 9, and a first test box 10; the first test box 10 and the first PC end are electrically connected and network-connected through a serial port line and a concentrator; the spectrometer 9 is electrically connected to the first PC terminal, the broadband light source 1 is electrically and optically connected to the first optical switch 3, the first optical switch 3 is electrically and optically connected to the first test box 10, the first test box 10 is optically connected to the first device under test, the first test box 10 is electrically and optically connected to the second optical switch 4, the first device under test is optically connected to the second optical switch 4, the single-point light source 2 is electrically and optically connected to the third optical switch, the third optical switch is optically connected to the optical splitter 8, and the optical splitter 8 is optically connected to the first test box 10; the fourth optical switch 6 is connected with the first test box 10 through an electrical signal and an optical signal, and the spectrometer 9 is connected with the fourth optical switch 6 through an electrical signal and an optical signal. Therefore, the invention can complete the scanning and point measurement sharing of the test station, greatly reduce the production cost and effectively improve the equipment utilization rate and the optical communication test efficiency.

The multi-station scanning and point testing sharing integrated system and method based on optical communication testing provided by the invention are introduced in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be a change in the specific implementation and application scope, and in summary, the content of the present specification is only an implementation of the present invention, and not a limitation to the scope of the present invention, and all equivalent structures or equivalent flow transformations made by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention. And should not be construed as limiting the invention.