CN202522737U - Bidirectional optical sub-assembly - Google Patents
Bidirectional optical sub-assembly Download PDFInfo
- Publication number
- CN202522737U CN202522737U CN2012201206991U CN201220120699U CN202522737U CN 202522737 U CN202522737 U CN 202522737U CN 2012201206991 U CN2012201206991 U CN 2012201206991U CN 201220120699 U CN201220120699 U CN 201220120699U CN 202522737 U CN202522737 U CN 202522737U
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- CN
- China
- Prior art keywords
- metal
- tube core
- single fiber
- assembly
- optical sub
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- Expired - Fee Related
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Abstract
The utility model provides a bidirectional optical sub-assembly which comprises a metal assembly stand, a transmitter optical sub-assembly device, a receiver optical sub-assembly device, a single fiber and a 45-degree WDM filter plate. The transmitter optical sub-assembly device and the single fiber are arranged opposite to each other to form a horizontal shaft. The 45-degree WDM filter plate is positioned between the transmitter optical sub-assembly device and the single fiber. The receiver optical sub-assembly device is disposed on one side of the horizontal shaft. The transmitter optical sub-assembly device includes a laser tube core, a metal tube core fixing stand, a ceramic static isolating ring, a metal sleeve tube and a metal axial adjusting ring. Two ends of the ceramic static isolating ring are respectively press-fit by the metal tube core fixing stand and the metal sleeve tube and a distance d between transverse planes of the two ends is kept to be at least 0.2mm. The metal tube core fixing stand is fixed by the laser tube core through laser welding. The metal assembly stand and the metal sleeve tube are respectively fixed by the metal axial adjusting ring through laser welding. According to the above structure, the ceramic static isolating ring is adopted by the transmitter optical sub-assembly device so as to effectively carry out static isolation between the metal tube core fixing stand and the metal sleeve tube.
Description
Technical field
The utility model relates to the high speed single fiber transmitted in both directions integrated module of optical transceiver, relates in particular to a kind of high speed single fiber transmitted in both directions assembly that the integrated module of optical transceiver adopts.
Background technology
Existing high speed single fiber transmitted in both directions assembly (Bidirectional Optical Sub-Assembly; Be called for short the BOSA assembly); Comprise: a light emission component TOSA (Transmitter Optical Sub-Assembly), an optical fiber receive module ROSA (Receiver Optical Sub-Assembly), a single fiber and one 45 ° of WDM filter plates; TOSA and single fiber are to be oppositely arranged and form a transverse axis; 45 ° of WDM filter plates are positioned between the two, and ROSA is positioned at transverse axis one side, and the two-forty first light signal λ 1 of TOSA emission is exported by single fiber after the transmission of 45 ° of WDM filter plates; The second light signal λ 2 by the single fiber input is received by ROSA via 45 ° of WDM filter plate reflection backs simultaneously, thereby realizes the transmitted in both directions function of single fiber.Because monitoring diode MPD anode and the shared same pin of ground connection GND of the laser instrument LD of the TOSA in this structure; It is relatively more responsive to cause laser instrument LD tube core that static is discharged ESD (Electro-Static Discharge); Make monitoring diode MPD and receive the damage that static discharges ESD, cause the light transmit-receive integrated assembly functional reliability of two-forty single fiber transmitted in both directions poor than being easier to.
The utility model content
For overcoming above shortcoming, the utility model provides a kind of functional reliability high speed single fiber transmitted in both directions assembly preferably.
For realizing the purpose of the utility model; The utility model provides a kind of high speed single fiber transmitted in both directions assembly; Comprise: a metal assembly pedestal; One light emission component device, an optical fiber receive module device, a single fiber and one 45 ° of WDM filter plates; Said light emission component device and single fiber are to be oppositely arranged and form a transverse axis, and said 45 ° of WDM filter plates are positioned between the two, and said optical fiber receive module device is positioned at transverse axis one side; Said light emission component device comprises: a laser tube core, a metal die holder, a ceramic electrostatic isolation ring, a metal sleeve and a metal axial regulating ring; Through being fixed with pressure said metal die holder and metal sleeve and make both end faces keep spacing d values 0.2mm at least, said laser tube core Laser Welding (LBW) fixing metal tube core holder, said metal axial regulating ring are respectively through Laser Welding (LBW) fixing metal assembly pedestal and metal sleeve respectively at said ceramic electrostatic isolation ring two ends.
Also comprise an optoisolator, this isolator is on the transverse axis between said 45 ° of WDM filter plates and the light emission component device.
Said optical fiber receive module device comprises: an optical receiver tube core, one 0 ° of WDM filter plates and a packaged lens.
Said laser tube core emission optical axis becomes the θ angle with transverse axis.
Said θ angle is 2.78 °.
Because the light emission component device has adopted ceramic electrostatic isolation ring in the said structure; Metal die holder and metal sleeve are carried out effective electrostatic isolation; It is responsive to prevent that the two-forty laser tube core from discharging ESD to static; Effectively raise the antistatic releasability of whole high speed single fiber transmitted in both directions assembly, improve the functional reliability of whole assembly.Simultaneously, the optical fiber receive module device is provided with 0 ° of WDM filter plate and packaged lens in the said structure, has improved the transmissivity of service band light signal, simultaneously effective isolation the inoperative wave band optical signal, thereby improved communication quality greatly.
Description of drawings
Fig. 1 representes the utility model high speed single fiber transmitted in both directions modular construction synoptic diagram.
Embodiment
Describe the utility model most preferred embodiment in detail below in conjunction with accompanying drawing.
High speed single fiber transmitted in both directions assembly as shown in Figure 1; Comprise: a metal assembly pedestal 10; One light emission component device 20, an optical fiber receive module device 30, a single fiber 40 and one 45 ° of WDM filter plates 50; Light emission component device 20 is to be oppositely arranged with single fiber 40 and forms a transverse axis; 45 ° of WDM filter plates 50 are positioned between the two; Optical fiber receive module device 30 is positioned at transverse axis one side; Light emission component device 20 comprises: the ceramic electrostatic isolation ring of a laser tube core 21, a metal die holder 22, one 23, a metal sleeve 24 and a metal axial regulating ring 25, ceramic electrostatic isolation ring 23 two ends respectively through the metal die holder 22 that is fixed with pressure with metal sleeve 24 and make both end faces keep spacing d values 0.2mm at least, guarantee the antistatic releasing effect between two-forty TO-CAN encapsulation light emission component 110 and the assembly seat 10.Laser tube core 21 Laser Welding (LBW) fixing metal tube core holders 22, metal axial regulating ring 25 are respectively through Laser Welding (LBW) fixing metal assembly pedestal 10 and metal sleeve 24.In order to prevent that backlight from causing interference to laser tube core 21, also comprise an optoisolator 60, this isolator is on the transverse axis between 45 ° of WDM filter plates 50 and the light emission component device 20.Optical fiber receive module device 30 comprises: 31,1 ° of WDM filter plates 32 of an optical receiver tube core and a packaged lens 33.In order better to have the output of optically-coupled preferably between bonding optical fiber 40 and the two-forty laser tube core 21, two-forty laser tube core 21 emission optical axises become the θ angle with transverse axis, and this angle optimum value is 2.78 °.
The high speed single fiber transmitted in both directions assembly principle of work of said structure: the first light signal λ, 1 forward that light emission component device 20 is launched two-forties passes through 45 ° of WDM filter plates 50 of optoisolator 60 back arrival, outwards exports behind the single fiber 40 optical fiber angled end-faces through passing through behind its total transmissivity; Simultaneously, single fiber 40 is incident to 45 ° of WDM filter plates 50 by the outside input two-forty second light signal λ 2 after by the outgoing of optical fiber angled end-face, through total reflection through behind packaged lens 33 and the 0 ° of WDM filter plate 32 by 31 receptions of two-forty optical receiver tube core.Because the light emission component device has adopted ceramic electrostatic isolation ring in the said structure; Metal die holder and metal sleeve are carried out effective electrostatic isolation; It is responsive to prevent that the two-forty laser tube core from discharging ESD to static; Effectively raise the antistatic releasability of whole high speed single fiber transmitted in both directions assembly, improve the functional reliability of whole assembly.Simultaneously, the optical fiber receive module device is provided with 0 ° of WDM filter plate and packaged lens in the said structure, has improved the transmissivity of service band light signal, simultaneously effective isolation the inoperative wave band optical signal, thereby improved communication quality greatly.
Claims (5)
1. high speed single fiber transmitted in both directions assembly; Comprise: a metal assembly pedestal (10); One light emission component device (20), an optical fiber receive module device (30), a single fiber (40) and one 45 ° of WDM filter plates (50); Said light emission component device (20) and single fiber (40) are to be oppositely arranged and form a transverse axis; Said 45 ° of WDM filter plates (50) are positioned between the two; Said optical fiber receive module device (30) is positioned at transverse axis one side; It is characterized in that said light emission component device (20) comprising: a laser tube core (21), a metal die holder (22), a ceramic electrostatic isolation ring (23), a metal sleeve (24) and a metal axial regulating ring (25), said ceramic electrostatic isolation ring (23) two ends are respectively through being fixed with pressure said metal die holder (22) and metal sleeve (24) and make both end faces keep spacing d values 0.2mm at least; Said laser tube core (21) Laser Welding (LBW) fixing metal tube core holder (22), said metal axial regulating ring (25) are respectively through Laser Welding (LBW) fixing metal assembly pedestal (10) and metal sleeve (24).
2. high speed single fiber transmitted in both directions assembly according to claim 1 is characterized in that, also comprises an optoisolator (60), and this isolator is positioned on the transverse axis between said 45 ° of WDM filter plates (50) and the light emission component device (20).
3. high speed single fiber transmitted in both directions assembly according to claim 1 and 2 is characterized in that said optical fiber receive module device (30) comprising: an optical receiver tube core (31), one 0 ° of WDM filter plates (32) and a packaged lens (33).
4. high speed single fiber transmitted in both directions assembly according to claim 3 is characterized in that, said laser tube core (21) emission optical axis becomes the θ angle with transverse axis.
5. high speed single fiber transmitted in both directions assembly according to claim 4 is characterized in that said θ angle is 2.78 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201206991U CN202522737U (en) | 2012-03-28 | 2012-03-28 | Bidirectional optical sub-assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201206991U CN202522737U (en) | 2012-03-28 | 2012-03-28 | Bidirectional optical sub-assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522737U true CN202522737U (en) | 2012-11-07 |
Family
ID=47105680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201206991U Expired - Fee Related CN202522737U (en) | 2012-03-28 | 2012-03-28 | Bidirectional optical sub-assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646775A (en) * | 2016-10-26 | 2017-05-10 | 青岛海信宽带多媒体技术有限公司 | Dual-fiber optical module |
-
2012
- 2012-03-28 CN CN2012201206991U patent/CN202522737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646775A (en) * | 2016-10-26 | 2017-05-10 | 青岛海信宽带多媒体技术有限公司 | Dual-fiber optical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |