阅读说明：本技术 一种激光发射装置及其同轴to封装 (Laser emission device and coaxial TO encapsulation thereof ) 是由 侯杰 于 2019-08-26 设计创作，主要内容包括：本发明提出一种激光发射装置,包括：管座(1)、承载部(2)、至少一个背光探测器(4)、至少一个引脚(5),其中,所述至少一个引脚(5)延伸穿过所述管座(5),所述管座(1)的一端面上设有所述承载部(2),所述至少一个背光探测器(4)设置在所述管座(1)的一端面上,所述激光模块还包括至少两个激光器(3),所述至少两个激光器(3)沿所述管座(1)的周向方向设置在所述承载部(2)上。(The invention provides a laser emitting device, comprising: tube socket (1), bearing part (2), at least one detector (4) in a poor light, at least one pin (5), wherein, at least one pin (5) extend through tube socket (5), be equipped with on the terminal surface of tube socket (1) bearing part (2), at least one detector (4) in a poor light set up on a terminal surface of tube socket (1), the laser module still includes two at least lasers (3), two at least lasers (3) are followed the circumferential direction setting of tube socket (1) is in bear on the part (2).)

1. A laser emitting device comprising: tube socket 1, bearing part (2), at least one detector (4), at least one pin (5) are shaded, wherein, at least one pin (5) extend through tube socket (5), be equipped with on the terminal surface of tube socket (1) bearing part (2), at least one detector (4) are shaded sets up on a terminal surface of tube socket (1), its characterized in that, the laser module still includes two at least lasers (3), two at least lasers (3) are followed the circumferential direction of tube socket (1) sets up on bearing part (2).

2. Laser light emitting device according to claim 1, characterized in that the carrier part (2) is a boss structure provided on one end face of the stem (1).

3. Laser light emitting device according to claim 2, wherein the carrier (2) has at least two carrier mounting surfaces in the circumferential direction of the header (1), the number of carrier mounting surfaces being the same as the number of lasers, each of the lasers (3) being mounted on each of the carrier mounting surfaces, respectively.

4. Laser light emitting device according to claim 1, characterized in that the at least one backlight detector (4) is arranged in the vicinity of the at least one laser (3), respectively.

5. Laser emitting device according to any of claims 1-4, wherein the laser module further comprises a mounting portion (6), the at least one mounting portion (6) being arranged in a circumferential direction of the carrier portion (2) along a circumferential direction of the stem (1), the at least one laser (3) being mounted on the at least one mounting portion (6).

6. A coaxial TO package comprising the laser emitting device according TO any one of claims 1 TO 5.

Technical Field

The present invention relates TO a laser transmitter and a coaxial TO package thereof, and more particularly, TO a laser transmitter and a coaxial TO package of a space array coaxial package.

Background

With the development of the global optical communication network, the communication speed is continuously improved, more and more cables are replaced by optical fibers, the demand for a short-distance optical module packaged in a high-speed and small-sized manner is increased, and the increase of the demand makes an optical communication assembly with multiple functions, flexibility and low cost become a necessary trend for development.

Generally, in an optical module structure, an electrical signal enters the PCBA from a gold finger and then is output to an opto-chip, which converts the electrical signal into an optical signal, which is output to an optical port via an optical system. The laser transmitter is an important component in an optical module, and is used for transmitting an optical signal.

The existing laser emitting device adopts two main packaging technologies, one is BOX packaging; the other is TO (resistor-out) packaging technology, i.e. coaxial TO packaging.

Coaxial TO encapsulation: the coaxial cooling laser module has the advantages of simple packaging, good universality, high production efficiency and the like, and is widely applied to optical communication products, for example, patent document CN1811505A discloses a coaxial cooling laser module with an integrated thermoelectric cooler and an optical component, and the page 3, paragraph 1 and the attached fig. 2-4 disclose: the TO header subassembly 14 can include a TP header 20 having a number of electrical conductor pins 22 extending through the TO header 20. For example, patent document CN102043208A discloses a cooled laser module, whose specification paragraph 0021-: the TO package can 10 is comprised of a TO header subassembly 14 and a sealing cap 16, the TO header subassembly 14 including a TO header 20 having a number of electrical conductor pins 22 extending through the TO header 20. However, the coaxial TO package laser module can only carry one channel, i.e. a single-channel signal transmission.

in order TO realize multi-channel signal transmission, a structure is provided in which a plurality of coaxial TO packages are used in parallel, but the structure is obviously complicated and the size is increased.

In order to realize multi-channel signal transmission, a BOX package is also provided: the optical isolator is packaged inside the BOX, multi-channel signal transmission can be achieved in the BOX, but the multi-channel laser adopts a planar array form, the whole size is large, the optical path structure is complex, and the process difficulty is high.

Based on this, it is necessary to design a compromise package structure of the laser emitting device, which can achieve both simple structure and low cost and realize multi-channel signal transmission.

Disclosure of Invention

The technical problem TO be solved by the present invention is TO overcome the above-mentioned defects in the prior art, and TO provide a laser transmitter and a coaxial TO package thereof.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

A laser emitting device comprising: tube socket (1), bearing part (2), at least one detector (4) in a poor light, at least one pin (5), wherein, at least one pin (5) extend through tube socket (5), be equipped with on the terminal surface of tube socket (1) bearing part (2), at least one detector (4) in a poor light set up on a terminal surface of tube socket (1), the laser module still includes two at least lasers (3), two at least lasers (3) are followed the circumferential direction setting of tube socket (1) is in bear on the part (2).

Further, the bearing part (2) is a boss structure arranged on one end face of the tube seat (1).

Further, along the circumferential direction of the tube seat (1), the bearing part (2) is provided with at least two bearing part mounting surfaces, the number of the bearing part mounting surfaces is the same as that of the lasers, and each laser (3) is respectively mounted on each bearing part mounting surface.

Further, the at least one backlight detector (4) is arranged in the vicinity of the at least one laser (3), respectively.

Further, the laser module still includes installation department (6), at least one installation department (6) are followed the circumferential direction of tube socket (1) sets up the circumferential direction of bearing part (2), install on at least one installation department (6) at least one laser instrument (3).

Furthermore, the invention also provides a coaxial TO package which comprises the laser module.

Compared with the prior art, the invention has the advantages that: on the basis of the existing coaxial TO encapsulation, complex planar array encapsulation is not needed, a plurality of channels can multiplex a set of simple optical path, and multi-channel signal transmission can be realized; in addition, the coaxial TO packaging process is mature and stable, and can be compatible with the existing production line equipment, the switching does not need TO increase investment, and compared with BOX packaging, the cost is obviously reduced.

Drawings

The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:

Fig. 1 is a schematic view of a laser transmitter of the present invention.

fig. 2 is an exploded view of the laser transmitter of the present invention.

Fig. 3 is a schematic view of another embodiment of the laser transmitter of the present invention.

The reference numerals in the figures denote:

1. A tube holder; 2. A bearing part; 21-23, a bearing part mounting surface; 3. a laser; 4. a backlight detector; 5. a pin; 6. an installation part; 11. a tube holder; 12. a bearing part; 13. a laser; 14. a backlight detector; 15. and (7) a pin.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element obtained by "comprising … …" does not, without further limitation, exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.