阅读说明：本技术 一种光纤角度调整装置、光纤安装系统及方法 (Optical fiber angle adjusting device, optical fiber installation system and method ) 是由 李静婷 赵复生 赵俊洋 于 2020-04-28 设计创作，主要内容包括：本发明涉及耦合光纤安装技术领域,公开了一种光纤角度调整装置、光纤安装系统及方法,包括光纤角度调整装置和光纤固定机构,所述光纤角度调整装置包括一角度调整台以及设置于所述角度调整台上的第一光纤夹持装置,所述第一光纤夹持装置对应的所述角度调整台上设置有供光纤通过的通孔；该设备通过光纤角度调整装置和光纤固定机构的配合实用,可夹持光纤进行旋转,从而对保偏光纤的角度进行调整,同时第一光纤夹持装置与第二光纤夹持装置的设置可保证光纤在转动和固定时没有应力存在。(The invention relates to the technical field of coupled optical fiber installation, and discloses an optical fiber angle adjusting device, an optical fiber installation system and an optical fiber installation method, wherein the optical fiber angle adjusting device comprises an angle adjusting table and a first optical fiber clamping device arranged on the angle adjusting table, and a through hole for an optical fiber to pass through is formed in the angle adjusting table corresponding to the first optical fiber clamping device; the equipment is practical through the cooperation of optic fibre angle adjusting device and optic fibre fixed establishment, but the centre gripping optic fibre rotates to adjust the angle of polarization maintaining optic fibre, first optic fibre clamping device and second optic fibre clamping device's setting can guarantee that optic fibre does not have stress when rotating and fixing simultaneously and exist.)

1. The optical fiber angle adjusting device is characterized by comprising an angle adjusting table (1) and a first optical fiber clamping device (2) arranged on the angle adjusting table (1), wherein a through hole (101) for an optical fiber to pass through is formed in the angle adjusting table (1) corresponding to the first optical fiber clamping device (2).

2. The optical fiber angle adjusting device according to claim 1, wherein a rotating disc (3) is fixed on the angle adjusting table (1), the first optical fiber clamping device (2) is fixed on the rotating disc (3), the first optical fiber clamping device (2) comprises a first placing frame (201), a first groove (202) is formed in the center of the first placing frame (201), the first groove (202) corresponds to the through hole (101), the first groove (202) is used for placing an optical fiber, a first gland (203) is further arranged on the first placing frame (201), and a second groove (204) matched with the first groove (202) is formed below the first gland (203) and used for fixing the placed optical fiber.

3. An optical fibre installation system, characterized in that it comprises an optical fibre angle adjustment device according to any one of claims 1 to 2, and further comprises an optical fibre securing means (4) cooperating with said optical fibre angle adjustment device.

4. An optical fibre installation system according to claim 3, wherein the fibre securing means (4) comprises a displacement adjustment device (5) and a second fibre gripping device (6) arranged on the displacement adjustment device (5).

5. An optical fibre installation system according to claim 4, wherein the displacement adjustment means (5) comprises three sets of displacement means each arranged vertically to achieve a six degree of freedom adjustment.

6. An optical fibre installation system according to claim 5, wherein the second fibre gripping means (6) comprises a support arm (601) and a fibre clamp (602) secured to the support arm.

7. An optical fiber installation system according to claim 6, further comprising a measuring table (7), wherein the measuring table (7) is detachably disposed on one side or both sides of the optical fiber angle adjusting means.

8. An optical fiber installation method according to claim 7, wherein a lens (703), a polarizing plate (704) and a power meter (705) are sequentially installed on the measurement stage (7).

9. A method of installing optical fibres, characterised in that it is based on any one of the optical fibre installation systems of claims 3 to 8, comprising the steps of: (1) clamping the optical fiber by a first optical fiber clamping device (2); (2) twisting the optical fiber to a set angle through a turntable (3); (3) the optical fiber is fixedly installed through the optical fiber fixing mechanism (4).

10. An optical fiber installation method according to claim 9, wherein in the step (1), the optical fiber is passed through the through hole (101), placed in the first fiber holding means (2) and fixed; in the step (2), the rotary table (3) rotates the twisted optical fiber, and the twist angle is measured through the measuring table (7); in the step (3), an optical fiber clamping part is placed and fixed on an optical fiber clamp (602) on the optical fiber fixing mechanism (4), and the displacement adjusting device (5) is adjusted to enable the optical fiber to correspond to the optical fiber clamping part in position and then the installation is completed.

Technical Field

The invention relates to the technical field of coupled optical fiber installation, in particular to an optical fiber angle adjusting device, an optical fiber installation system and an optical fiber installation method.

Background

Along with the development of the internet, the demand of people on the information content is gradually improved, the photonic integrated chip is the advanced technology of optical fiber communication, the photonic integrated chip is low in cost and high in capacity, and accords with the development of modern science and technology, and the rapid development is obtained, wherein when the optical fiber and the photonic integrated chip are subjected to grating coupling, the angle of the optical fiber needs to be ensured to meet the design requirement, and meanwhile, for the polarization maintaining optical fiber, the capacity of rotating the optical fiber to realize a specific polarization angle is needed, but the existing device can not enable the optical fiber to be stressed to prevent the optical fiber from being damaged or cause unnecessary stress when the optical fiber is.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an optical fiber angle adjusting device, an optical fiber installation system and an optical fiber installation method.

In order to achieve the above purpose, the invention provides the following technical scheme:

the optical fiber angle adjusting device comprises an angle adjusting table and a first optical fiber clamping device arranged on the angle adjusting table, wherein a through hole for an optical fiber to pass through is formed in the angle adjusting table corresponding to the first optical fiber clamping device.

In the present invention, preferably, a turntable is fixed on the angle adjusting table, the first optical fiber clamping device is fixed on the turntable, the first optical fiber clamping device includes a first placing frame, a first groove is provided in the center of the first placing frame, the first groove corresponds to the through hole, the first groove is used for placing an optical fiber, a first pressing cover is further provided on the first placing frame, and a second groove matched with the first groove is provided below the first pressing cover and used for fixing the placed optical fiber.

An optical fiber installation system comprises the optical fiber angle adjusting device and an optical fiber fixing mechanism matched with the optical fiber angle adjusting device.

In the present invention, preferably, the optical fiber fixing mechanism includes a displacement adjusting device and a second optical fiber clamping device disposed on the displacement adjusting device.

In the present invention, preferably, the displacement adjusting device includes three sets of displacement devices respectively vertically arranged to achieve adjustment of six degrees of freedom.

In the present invention, it is preferable that the second fiber holding device includes a support arm and a fiber clamp fixed to the support arm.

In the present invention, it is preferable that the optical fiber angle adjusting device further includes a measuring table, and the measuring table is detachably disposed on one side or both sides of the optical fiber angle adjusting device.

In the present invention, it is preferable that a lens, a polarizing plate, and a power meter are mounted on the measuring table in this order.

An optical fiber installation method based on any optical fiber installation system comprises the following steps: (1) clamping the optical fiber through a first optical fiber clamping device; (2) twisting the optical fiber to a set angle through a turntable; (3) and the optical fiber is fixedly installed through the optical fiber fixing mechanism.

In the present invention, it is preferable that in the step (1), the optical fiber is passed through the through hole, placed in a first fiber holding device, and fixed; in the step (2), the rotating disc rotates the twisted optical fiber, and the twist angle is measured through the measuring table; and (3) placing and fixing an optical fiber clamping part on an optical fiber clamp on the optical fiber fixing mechanism, and adjusting the displacement adjusting device to enable the optical fiber to correspond to the optical fiber clamping part in position to finish installation.

Compared with the prior art, the invention has the beneficial effects that:

through the cooperation practicality of optic fibre angle adjusting device and optic fibre fixed establishment, but the centre gripping optic fibre rotates to adjust the angle of polarization maintaining optic fibre, first optic fibre clamping device and second optic fibre clamping device's setting can guarantee that optic fibre does not have stress when rotating and fixing simultaneously and exist.

Drawings

Fig. 1 is a schematic structural diagram of an optical fiber angle adjusting device according to the present invention.

Fig. 2 is an enlarged schematic view at a of fig. 1.

Fig. 3 is a schematic structural diagram of an optical fiber fixing mechanism of an optical fiber installation system according to the present invention.

FIG. 4 is a front view of one of the fiber securing mechanisms of FIG. 3.

Fig. 5 is a schematic structural diagram of an optical fiber fixing mechanism of a Z-type supporting arm structure of an optical fiber installation system according to the present invention.

Fig. 6 is an enlarged schematic view at B of fig. 5.

Fig. 7 is a schematic structural diagram of a fiber installation system according to the present invention for performing grating-coupled fiber installation.

FIG. 8 is a front view of a fiber mounting system according to the present invention for grating-coupled fiber mounting.

Fig. 9 is a schematic structural diagram of an optical fiber installation system according to the present invention for performing end-coupling optical fiber installation.

FIG. 10 is a front view of an end-coupled fiber installation of a fiber installation system according to the present invention.

In the drawings: 1-angle adjusting table, 101-through hole, 2-first optical fiber clamping device, 201-first placing frame, 202-first groove, 203-first gland, 204-second groove, 3-rotary table, 4-optical fiber fixing mechanism, 5-displacement adjusting device, 501-lifting block, 502-lifting air cylinder, 503-first displacement block, 504-first pushing air cylinder, 505-second displacement block, 506-second pushing air cylinder, 6-second optical fiber clamping device, 601-supporting arm, 602-optical fiber clamp, 603-lower clamp plate, 604-third groove, 605-upper clamp plate, 606-fourth groove, 7-measuring table, 701-pillar, 702-mounting block, 703-lens, 704-polaroid, 705-power meter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 10, a first aspect of the present invention provides an optical fiber angle adjusting device, which is mainly used for completing optical fiber alignment and angle adjustment in a grating coupling or end-face coupling system, the optical fiber angle adjusting device includes an angle adjusting stage 1 and a first optical fiber clamping device 2 disposed on the angle adjusting stage 1, and a through hole 101 for an optical fiber to pass through is disposed on the angle adjusting stage 1 corresponding to the first optical fiber clamping device 2.

In the angle adjusting means, the optical fiber passes through any one side of the through hole 101, and since the first fiber holding means 2 corresponds to the position of the through hole 101, the optical fiber passing through the through hole 101 can be fixed by the first fiber holding means 2; the angle of the optical fiber can be adjusted by adjusting the angle of the angle adjusting table 1.

According to the technical scheme, the through hole 101 is formed in the center of the angle adjusting table 1, so that the optical fiber can penetrate through the device from any direction of two sides of the device, and the interference of other devices on the installation of the optical fiber in the process of using the device in cooperation with other devices can be avoided.

As shown in fig. 1 and fig. 2, in a specific embodiment of the present invention, a rotating disc 3 is fixed on an angle adjusting table 1, a first fiber clamping device 2 is fixed on the rotating disc 3, the first fiber clamping device 2 includes a first rack 201, a first groove 202 is arranged in the center of the first rack 201, the first groove 202 corresponds to the through hole 101, the first groove 202 is used for placing an optical fiber, a first gland 203 is further arranged on the first rack 201, and a second groove 204 matched with the first groove 202 is arranged below the first gland 203 and used for fixing the placed optical fiber.

The first placing frame 201 and the first pressing cover 203 are detachably buckled together, and when the first placing frame 201 and the first pressing cover 203 are buckled together, the first groove 202 and the second groove 204 are oppositely arranged to limit a space for optical fibers to pass through; in this embodiment, the first groove 202 and the second groove 204 may be semi-arcs arranged oppositely, or V-grooves arranged oppositely may also be adopted.

In an embodiment of the present invention, the first placing frame 201 and the first pressing cover 203 are fastened to each other by bolts, and the inner walls of the first groove 202 and the second groove 204 are provided with a buffer layer, for example, a rubber or silica gel layer is used to protect the optical fiber, so as to prevent the optical fiber from being damaged by a rigid material.

A second aspect of the present invention provides an optical fiber installation system, which includes the optical fiber angle adjusting device according to any one of the above embodiments, and further includes an optical fiber fixing mechanism 4 cooperating with the optical fiber angle adjusting device, where the optical fiber fixing mechanism 4 includes a displacement adjusting device 5 and a second optical fiber clamping device 6 disposed on the displacement adjusting device 5.

In the present embodiment, the displacement adjusting device 5 includes three sets of displacement devices respectively vertically arranged to achieve adjustment of six degrees of freedom; the three groups of displacement devices are respectively an up-down displacement device, a left-right displacement device and a front-back displacement device, wherein the up-down displacement device comprises a lifting block 501, the lifting block 501 is fixedly connected with a lifting cylinder 502, and the lifting cylinder 502 can drive the lifting block 501 to move up and down; a front-back displacement device is fixed below the lifting block 501, the front-back displacement device comprises a first displacement block 503, the first displacement block 503 is fixedly connected with a first pushing cylinder 504, and the first pushing cylinder 504 can drive the first displacement block 503 to move towards or away from the optical fiber angle adjusting device, so that the upper-lower displacement device is driven to move; a left-right displacement device is fixed below the first displacement block 503 and comprises a second displacement block 505, the second displacement block 505 is connected with a second pushing cylinder 506, and the second pushing cylinder pushes the second displacement block 505 to move left and right relative to the optical fiber angle adjusting device.

In this embodiment, the second fiber holding device 6 includes a support arm 601, and a fiber clamp 602 is fixed to one end of the support arm 601.

As shown in fig. 5 and 6, in a specific embodiment of the present invention, the optical fiber clamp 602 includes two clamping plates disposed up and down, a third groove 604 is disposed between the clamping plates, in this embodiment, the supporting arm 601 is Z-shaped, a free end of the Z-shaped supporting arm 601 is disposed to form a lower clamping plate 603 of the optical fiber clamp 602, a third groove 604 is disposed on the lower clamping plate 603, an upper clamping plate 605 is matched on the clamping plate 603, a fourth groove 606 is disposed on the upper clamping plate 605 opposite to the lower clamping plate 603, and the third groove 604 and the fourth groove 606 define a space for passing the optical fiber; the third groove 604 and the fourth groove 606 may be opposite semi-arcs, or may be opposite V-shaped grooves; the other free end of the Z-shaped supporting arm 601 is fixedly connected to the top of the displacement adjusting device 5, and the position of the optical fiber clamped on the optical fiber clamp 602 is adjusted by adjusting the displacement adjusting device 5.

In another embodiment of the present invention, as shown in fig. 3 and 4, the fiber clamp 602 includes clamping plates disposed on the left and right sides, and in order to adapt to this solution, the mounting manner of the supporting arm 601 is adjusted accordingly, and specifically, the supporting arm 601 is mounted on one side of the displacement adjusting device 5.

In the present invention, the specific implementation of the fiber clamp 602 and the supporting arm 601 can be changed according to the actual requirement, and the invention is not limited thereto.

In another embodiment of the present invention, the measuring table 7 further includes a measuring table 7, the measuring table 7 includes a support 701, a mounting block 702 is fixed on the support 701, and a lens 703, a polarizer 704 and a power meter 705 are sequentially mounted on the mounting block 702, wherein the lens 703 performs a laser collimation function, so as to facilitate the polarizer 704 and the power meter 705 to measure the rotation angle of the optical fiber, the measuring table 7 is detachably disposed on two sides of the optical fiber angle adjusting device, and the lens 703 is always disposed close to the optical fiber angle adjusting device.

The working principle is as follows:

the bare optical fiber passes through the through hole 101 to be placed in the first groove 202, is fixed by the first gland 203, leaves the bare optical fiber with the length of about 1cm to be suspended, places the optical fiber clamping part into the optical fiber clamp 602 of the second optical fiber clamping device 6 to be fixed, and moves the supporting arm 601 to a proper position by controlling the lifting cylinder 502, the first pushing cylinder 504 and the second pushing cylinder 506 on the displacement device, so that the first optical fiber clamping device 2 corresponds to the second optical fiber clamping device 6 in position, and the optical fiber corresponds to the optical fiber clamping part in position.

When the installation optical fiber is a polarization maintaining optical fiber, laser is coupled into the free end of the optical fiber, the angle of the polarization maintaining optical fiber is measured through the lens 703, the polarizing plate 704 and the power meter 705 on the measuring table 7, the polarization maintaining optical fiber in the first optical fiber clamping device 2 arranged on the rotating table 3 is rotated to a required angle through rotating the rotating table 3, and finally the optical fiber is fixed. And (5) removing the first gland 203, and removing the optical fiber clamping part to finish assembly.

Based on the steps, the device can realize the installation of single-mode and polarization-maintaining optical fibers for grating coupling and end face coupling, wherein the polarization-maintaining optical fibers for grating coupling are installed as shown in fig. 7 and 8, an optical fiber angle adjusting device, an optical fiber fixing mechanism 4 provided with an inverted Z-shaped supporting arm 601 and a second optical fiber clamping device 6 and a measuring table 7 are needed, and the measuring table 7 is arranged at the same side of the optical fiber fixing mechanism 4; the polarization maintaining optical fiber with end-face coupling is installed as shown in fig. 9 and fig. 10, and requires an optical fiber angle adjusting device, an optical fiber fixing mechanism 4 equipped with a Z-type supporting arm 601 and a second optical fiber clamping device 6, and a measuring table 7, wherein the measuring table 7 is arranged at the other side of the optical fiber angle adjusting device and is not at the same side as the optical fiber fixing mechanism 4; the installation of the single-mode optical fiber of the grating coupling and the end face coupling can be directly finished without rotating the optical fiber and the measuring table 7.

A third aspect of the present invention provides an optical fiber installation method, based on the above optical fiber installation system, including the following steps: (1) the optical fiber is passed through the through hole 101 and placed in the first fiber clamping device 2 for fixing; (2) the rotary table 3 rotates the torsion optical fiber, and measures the torsion angle through the measuring table 7; (3) and placing and fixing an optical fiber clamping part on an optical fiber clamp 602 on the optical fiber fixing mechanism 4, and adjusting the displacement adjusting device 5 to enable the optical fiber to correspond to the optical fiber clamping part in position to finish installation.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.