CN203217125U

CN203217125U - Coaxial photoelectric assembly of high echo loss structure

Info

Publication number: CN203217125U
Application number: CN 201320125026
Authority: CN
Inventors: 张德玲; 王红亚
Original assignee: Wuhan Telecommunication Devices Co Ltd
Current assignee: Wuhan Telecommunication Devices Co Ltd
Priority date: 2013-03-19
Filing date: 2013-03-19
Publication date: 2013-09-25
Anticipated expiration: 2023-03-19

Abstract

The utility model relates to a coaxial photoelectric assembly for optical communication, which comprises an adapter, a characteristic metal tube and a photoelectric TO-CAN. The characteristic metal tube is fixedly mounted outside the photoelectric TO-CAN; the adapter is fixedly connected with the characteristic metal tube; and the characteristic metal tube includes two different axle centers, wherein the first axle center is the same with that of the photoelectric TO-CAN, and the second axle center is the same with that of the adapter. According to the coaxial photoelectric assembly, the characteristic metal tube includes two axle centers, so that echo loss index of the coaxial photoelectric assembly is obviously better than 27dB, light responsibility index of the photoelectric assembly is improved, yield of batch production is increased, and manufacturing efficiency of products is improved; and excellent performance of the photoelectric assembly is ensured while extra processing cost is not added, and reliability of the assembly is high.

Description

A kind of coaxial photoelectric subassembly of high return loss structure

Technical field

The utility model relates to a kind of coaxial photoelectric subassembly for optical communication, relates in particular to a kind of coaxial photoelectric subassembly of high return loss structure.

Background technology

The structure of the coaxial photoelectric subassembly of high return loss structure is made up of adapter, metal body and photoelectricity TO-CAN in the prior art; Simultaneously, adapter has a ceramic insertion core, one end face of this ceramic insertion core is that PC face (the physics surface of contact of the standard of using in a kind of optical communication applications), other end are inclined-plane (angle between the face of inclined-plane and vertical optical path direction is α, 6 °≤α≤16 °);

But, when reality is produced in batches, find that but the yield rate during production is lower; Since so design, though obtained reflecting preferably index, entire device responsiveness index is difficult to guarantee that production efficiency is slow.

Press in the market and a kind ofly can realize high-responsivity in light path, guarantee the high return loss index simultaneously again, especially when producing in batches, can effectively promote the coaxial photoelectric subassembly of the high return loss structure of product efficiency.

Summary of the invention

The purpose of this utility model is exactly to overcome the shortcoming and defect that prior art exists, and a kind of novel high return loss structure is provided.Adopt this structure, can realize high-responsivity in light path, guarantee the high return loss index simultaneously again, especially when producing in batches, can effectively promote product efficiency.

The technical solution adopted in the utility model is: a kind of coaxial photoelectric subassembly of high return loss structure comprises: adapter, feature metal body and photoelectricity TO-CAN; Described feature metal body is fixedly mounted on described photoelectricity TO-CAN outside, fixedlys connected between described adapter and the described feature metal body; It is characterized in that: described feature metal body has two different axle center: first axle center and second axle center; Described first axle center and described photoelectricity TO-CAN concentric, described second axle center and described adapter concentric.

As preferably, described feature metal body adopts adhesion process to be fixedly mounted on described photoelectricity TO-CAN outside.

As preferably, adopt laser bonding to fixedly connected between described adapter and the described feature metal body.

As preferably, the photodiode among the described photoelectricity TO-CAN adopts eccentric the installation.

As preferably, have sleeve and ceramic insertion core in the described adapter, described jacket casing is on described ceramic insertion core, and described ceramic insertion core press fit in the described adapter.

As preferably, the end face that described ceramic insertion core is connected with described feature metal body is that inclined-plane, other end are the PC face.

Compared with prior art, the utlity model has following beneficial effect:

1. rely on the design in 2 special axle center of feature metal body, make the return loss index of coaxial photoelectric subassembly obviously be better than 27dB, guaranteed the optical responsivity index of photoelectric subassembly simultaneously again;

2. promote the yield rate when producing in batches, promoted production efficient;

3. the technology of metal processing and fabricating is very ripe, and the utility model can additionally not increase processing cost when guaranteeing superperformance;

4. reliability height.

Description of drawings

Fig. 1: structural representation of the present utility model.

Fig. 2: feature metal body front cross-sectional view in the utility model.

Fig. 3: feature metal tube body side surface sectional view in the utility model.

Embodiment

Below in conjunction with further describing the technical program with reference to the accompanying drawings, the example of described embodiment is shown in the drawings, wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish, only be used for explaining the utility model but should describe, and can not be interpreted as restriction of the present utility model.

Ask for an interview Fig. 1, Fig. 2 and Fig. 3, the coaxial photoelectric subassembly of a kind of high return loss structure described in the utility model comprises: adapter 1, feature metal body 2 and photoelectricity TO-CAN3; Feature metal body 2 adopts adhesion processes to be fixedly mounted on photoelectricity TO-CAN3 outside, and the employing Laser Welding (LBW) taps into and fixedlys connected between adapter 1 and the feature metal body 2; Feature metal body 2 has two different axle center: the first axle center A and the second axle center B; The first axle center A and photoelectricity TO-CAN3 concentric, the second axle center B and adapter 1 concentric.Photodiode among the photoelectricity TO-CAN3 adopts eccentric the installation.Have sleeve 11 and ceramic insertion core 12 in the adapter 1; Sleeve 11 is enclosed within on the ceramic insertion core 12, and ceramic insertion core 12 press fit in the adapter 1; The end face that ceramic insertion core 12 is connected with feature metal body 2 is that inclined-plane, other end are the PC face.

The utility model utilizes two different axle center of feature metal body 2, make the road of incident light through slight change has taken place, then utilize the reflection of light path and the lens of TO cap to converge effect, light path is converged in the photodiode among the TO-CAN3 accurately, be received; So design had both guaranteed optical responsivity, had promoted the Optical Return Loss index of coaxial photoelectric subassembly again; When manufacturing, effectively promoted product efficiency.

It below only is preferred embodiment of the present utility model; be not for limiting protection domain of the present utility model; therefore, all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. the coaxial photoelectric subassembly of a high return loss structure comprises: adapter (1), feature metal body (2) and photoelectricity TO-CAN(3); Described feature metal body (2) is fixedly mounted on described photoelectricity TO-CAN(3) outside, fixedly connected between described adapter (1) and the described feature metal body (2); It is characterized in that: described feature metal body (2) has two different axle center: first axle center (A) and second axle center (B); Described first axle center (A) and described photoelectricity TO-CAN(3) concentric, described second axle center (B) and described adapter (1) concentric.

2. the coaxial photoelectric subassembly of high return loss structure according to claim 1 is characterized in that: described feature metal body (2) adopts adhesion process to be fixedly mounted on described photoelectricity TO-CAN(3) outside.

3. the coaxial photoelectric subassembly of high return loss structure according to claim 1 is characterized in that: adopt laser bonding to fixedly connected between described adapter (1) and the described feature metal body (2).

4. the coaxial photoelectric subassembly of high return loss structure according to claim 1 is characterized in that: the eccentric installation of photodiode employing described photoelectricity TO-CAN(3).

5. the coaxial photoelectric subassembly of high return loss structure according to claim 1, it is characterized in that: have sleeve (11) and ceramic insertion core (12) in the described adapter (1), described sleeve (11) is enclosed within on the described ceramic insertion core (12), and described ceramic insertion core (12) press fit in the described adapter (1).

6. the coaxial photoelectric subassembly of high return loss structure according to claim 5, it is characterized in that: the end face that described ceramic insertion core (12) is connected with described feature metal body (2) is that inclined-plane, other end are the PC face.