CN2802528Y - Coaxial photoelectric assembly of high echo loss structure - Google Patents
Coaxial photoelectric assembly of high echo loss structure Download PDFInfo
- Publication number
- CN2802528Y CN2802528Y CN 200520096999 CN200520096999U CN2802528Y CN 2802528 Y CN2802528 Y CN 2802528Y CN 200520096999 CN200520096999 CN 200520096999 CN 200520096999 U CN200520096999 U CN 200520096999U CN 2802528 Y CN2802528 Y CN 2802528Y
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- China
- Prior art keywords
- ceramic
- insertion core
- ceramic insertion
- pipe body
- band
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Abstract
The utility model discloses a coaxial photoelectric assembly of a high echo loss structure, which relates to the coaxial photoelectric assembly, more specifically a pipe body and a ceramic sleeve barrel, wherein the pipe body is provided with a ceramic inserting core; the pipe body and the ceramic sleeve barrel can realize the high echo loss on a light path. The utility model is composed of the ceramic sleeve barrel (a), a casing (b), the pipe body (c) and a TO-CAN (d), wherein the pipe body is provided with the ceramic inserting core; the ceramic sleeve barrel (a) is sheathed on the pipe body (c) provided with the ceramic inserting core; the pipe body (c) provided with the ceramic inserting core is positioned between the casing (b) and the TO-CAN (d); one side end face of the ceramic inserting core of the pipe body (c) is a PC surface, and the other end surface of the ceramic inserting core is an inclined surface. The utility model uses the pipe body (c) provided with the ceramic inserting core to lead the index of the optical return loss of the coaxial optoelectronic assembly to surpass 27 dB, completely satisfies requirements of an optical communication system and optimizes transmission distance and transmission stability of the optical communication system.
Description
Technical field
The utility model relates to a kind of coaxial photoelectric subassembly, relates in particular to a kind of coaxial photoelectric subassembly of high return loss structure, specifically, relates to body and the ceramic sleeve that can realize the band ceramic insertion core of high return loss on light path.
Background technology
At present, common coaxial photoelectric subassembly comprises TO CAN (a kind of same shaft housing encapsulation of special use, inner sealing is also used nitrogen protection, generally contains glass materials such as lens in the structure) and package casing.Common coaxial photoelectric subassembly is not provided with the body and the ceramic sleeve of band ceramic insertion core, can't realize high return loss on light path, to the influence of optical communication system is:
1, causes the laser output power instability;
2, reduce system's Optical Signal To Noise Ratio (OSNR);
3, jamming light source signal.
G.957, ITU-T marks difficult Optical Return Loss index to photoelectric subassembly clear and definite standard, and optical communication system also has very high requirement to the Optical Return Loss index of coaxial photoelectric subassembly.Under a lot of application scenarios, require the Optical Return Loss index of photoelectric subassembly to be better than 27dB, its reason is:
1, Optical Return Loss (ORL) index that is better than 27dB can be optimized the stability of laser output power, and the optical signal quality of optical communication system is well guaranteed;
2, the obvious optimization system Optical Signal To Noise Ratio (OSNR) of Optical Return Loss (ORL) index that is better than 27dB improves the efficient and the transmission range of optical communication system;
3) bit error rate (BER) of reduction digital display circuit, the sensitivity that improves system.
Summary of the invention
The purpose of this utility model is exactly to overcome the shortcoming and defect that prior art exists, a kind of coaxial photoelectric subassembly of high return loss structure is provided, even the Optical Return Loss index of photoelectric subassembly is better than 27dB, and guarantee that its performance index meet the requirement that G.957 ITU-T waits international standard.
The purpose of this utility model is achieved in that
As shown in Figure 1, the utility model is made of body c, the photoelectricity TO-CAN d of ceramic sleeve a, shell b, band ceramic insertion core; Ceramic sleeve a is enclosed within on the body c of band ceramic insertion core, and the body c of band ceramic insertion core is between shell b and photoelectricity TO-CAN d; The body c of described band ceramic insertion core, its ceramic insertion core is that to be PC face (the physics surface of contact of the standard of using in a kind of optical communication applications), other end be the ceramic insertion core on inclined-plane (inclined-plane and be β, 6 °≤β≤16 ° perpendicular to the angle between the face of optical path direction) to an a kind of end face.
The utility model has following advantage:
1, relies on the special ceramic insertion core design of this part of body c of band ceramic insertion core to make the Optical Return Loss index of coaxial photoelectric subassembly be better than 27dB, realized that the Optical Return Loss index of photoelectric subassembly satisfies the requirement of optical communication system fully.
2, increase substantially the Optical Return Loss index of photoelectric subassembly, optimized the stability of optical communication system transmission range and transmission.
3, performance index meet the requirement that G.957 ITU-T waits international standard fully.
Description of drawings
Fig. 1 is the utility model structural drawing (section).
Wherein:
The a-ceramic sleeve;
The b-shell;
The body of c-band ceramic insertion core;
D-photoelectricity TO-CAN.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
1, to the requirement of each parts of the utility model
* with the body c of ceramic insertion core, its inner shaft to optical fiber or single-mode fiber, perhaps multimode optical fiber.
* with the body c of ceramic insertion core, the employed diameter specifications of its ceramic insertion core comprises: the 1.25mm specification of using in LC type (the connector standard of being formulated by U.S. Lucent company that a kind of optical communication industry is used) device, the 2.5mm specification of using in SC type, FC type and the ST type devices such as (widely used several connector standards in the optical communication industry); The 2mm specification that U.S. army mark uses, the perhaps application of this class formation of other any specification.
* be a kind of removable assembly relation of adorning with the connection between the outer wall of the outer wall of the body c of ceramic insertion core and shell b.
* the outer wall of the ceramic insertion core of the body c of the inwall of ceramic sleeve a and band ceramic insertion core is a kind of slip cooperating relationship of precision.
* ceramic sleeve a or opening ceramic sleeve (a kind of parts in the various connection adaptor), or remain silent ceramic sleeve.
*, form as the structure shown on this patent structural drawing with ceramic insertion core and ceramic sleeve a or two the discrete parts of the body c of ceramic insertion core, or by the part that process meanses such as welding are processed into.This structure also has the function of optical adapter.
* being connected of the outer wall of the inwall of shell b and ceramic sleeve a is a kind of clearance fit relationship.
* the material of shell b or metal, or plastics, or other suitable material.
2, the utility model production assembly method
1. ceramic sleeve a is enclosed within on the body c of band ceramic insertion core, then this combiner and shell b is assembled, make the body c of ceramic sleeve a, shell b, band ceramic insertion core form a combiner.
2. combinations thereof parts and photoelectricity TO-CAN d carry out the photoelectricity coupling.
3. above-mentioned coupling finishes, and to join encapsulation fixing for laggard luggage.
3, the utility model using method
1. make photoelectric subassembly realize high return loss on light path, Optical Return Loss is better than 27dB;
2. make the performance index of photoelectric subassembly meet the requirement that G.957 ITU-T waits international standard comprehensively, optimize the transmission range of optical communication system and the stability of transmission.
Claims (6)
1, a kind of coaxial photoelectric subassembly of high return loss structure comprises shell (b) and TO CAN (d), it is characterized in that:
Constitute by ceramic sleeve (a), shell (b), the body (c) of band ceramic insertion core, photoelectricity TO-CAN (d); Ceramic sleeve a is enclosed within on the body (c) of band ceramic insertion core, and the body (c) of band ceramic insertion core is between shell (b) and photoelectricity TO-CAN (d); The body of described band ceramic insertion core (c), its ceramic insertion core are that an a kind of side end face is that PC face, opposite side end face are the ceramic insertion core on inclined-plane.
2, photoelectric subassembly as claimed in claim 1 is characterized in that:
The body (c) of band ceramic insertion core, its inner shaft to optical fiber or single-mode fiber, perhaps multimode optical fiber.
3, photoelectric subassembly as claimed in claim 1 is characterized in that:
Connection between the outer wall of the body (c) of band ceramic insertion core and the outer wall of shell (b) is a kind of removable assembly relation of adorning.
4, photoelectric subassembly as claimed in claim 1 is characterized in that:
The outer wall of the ceramic insertion core of the body (c) of the inwall of ceramic sleeve (a) and band ceramic insertion core is a kind of slip cooperating relationship of precision.
5, photoelectric subassembly as claimed in claim 1 is characterized in that:
Ceramic sleeve (a) or opening ceramic sleeve, or remain silent ceramic sleeve.
6, photoelectric subassembly as claimed in claim 1 is characterized in that:
Ceramic insertion core and ceramic sleeve (a) or two discrete parts of body (c) of band ceramic insertion core, or a part that is processed into by process meanses such as weldings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520096999 CN2802528Y (en) | 2005-06-29 | 2005-06-29 | Coaxial photoelectric assembly of high echo loss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520096999 CN2802528Y (en) | 2005-06-29 | 2005-06-29 | Coaxial photoelectric assembly of high echo loss structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802528Y true CN2802528Y (en) | 2006-08-02 |
Family
ID=36847235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520096999 Expired - Lifetime CN2802528Y (en) | 2005-06-29 | 2005-06-29 | Coaxial photoelectric assembly of high echo loss structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802528Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111216A (en) * | 2011-03-28 | 2011-06-29 | 常熟市宝源光电科技有限公司 | Laser transmission module for fibre-optical communication |
| CN101852902B (en) * | 2009-03-31 | 2012-04-18 | 台达电子工业股份有限公司 | Optical transceiver, optical communication sub-module and insulated sleeve thereof |
| CN109375322A (en) * | 2018-12-25 | 2019-02-22 | 深圳海荻威光电科技有限公司 | It is a kind of transmit at a distance without lock pin adapter and its processing technology |
-
2005
- 2005-06-29 CN CN 200520096999 patent/CN2802528Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852902B (en) * | 2009-03-31 | 2012-04-18 | 台达电子工业股份有限公司 | Optical transceiver, optical communication sub-module and insulated sleeve thereof |
| CN102111216A (en) * | 2011-03-28 | 2011-06-29 | 常熟市宝源光电科技有限公司 | Laser transmission module for fibre-optical communication |
| CN102111216B (en) * | 2011-03-28 | 2012-11-21 | 常熟市宝源光电科技有限公司 | Laser transmission module for fibre-optical communication |
| CN109375322A (en) * | 2018-12-25 | 2019-02-22 | 深圳海荻威光电科技有限公司 | It is a kind of transmit at a distance without lock pin adapter and its processing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150629 Granted publication date: 20060802 |
|
| EXPY | Termination of patent right or utility model |