CN106646771A - Same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device - Google Patents
Same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device Download PDFInfo
- Publication number
- CN106646771A CN106646771A CN201510742828.9A CN201510742828A CN106646771A CN 106646771 A CN106646771 A CN 106646771A CN 201510742828 A CN201510742828 A CN 201510742828A CN 106646771 A CN106646771 A CN 106646771A
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- China
- Prior art keywords
- wavelength
- light splitting
- fiber
- light
- seat
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4285—Optical modules characterised by a connectorised pigtail
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4286—Optical modules with optical power monitoring
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device which comprises a shell body, a tail fiber arranged in the shell body and a tee joint metal seat connected to an upper end of the shell body, another end of the tee joint metal seat is provided with a laser device, a side part opening of the tee joint metal seat is perpendicular to the shell body, a beam splitting sheet seat is mounted in the side part opening of the tee joint metal seat, a detector is mounted in the beam splitting sheet seat, a beam splitting sheet which is positioned in the tee joint metal seat is mounted on the beam splitting sheet seat, the tee joint metal seat is provided with an installation hole opposite to the side part opening, and a light absorption cover is mounted in the installation hole. Via adoption of the above structure, the beam splitting sheet seat is mounted inside through a detector hole of the tee joint metal seat, stray light of a transmitting end can be blocked via the beam splitting sheet seat, crosstalk can be lowered greatly, the tail fiber which is of a special structure is adopted, and a ceramic plug core and an optical fiber core are enabled to be on different optical panels; the single fiber bidirectional device is simple in structure, convenient in production, low in production difficulty and high in popularization and usage value.
Description
Technical field
The present invention relates to a kind of optic communication device, the light transmit-receive integrated single-fiber bidirectional device of specifically a kind of co-wavelength wavelength-division multiplex belongs to technical field of laser communication.
Background technology
At present, the wavelength-division multiplex single fiber bi-directional communication technology is in optical communication field achieved with application widely, as the core component of wavelength-division multiplex single fiber bi-directional optic communication --- the light transmit-receive integrated single-fiber bidirectional device of wavelength-division multiplex also has diversified design, wherein transmitting is referred to as the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex with the long identical of received wave；This kind of device haves the shortcomings that crosstalk is big, and the veiling glare of transmitting terminal, transmitting terminal light can enter detector through the surface launching of fiber end face ceramic end, form crosstalk interference detector normal work；Product on the market plates anti-reflection film and can solve fiber end face transmitting problem by fiber end face, reduces part by ceramic insertion core chamfering and launches；But cannot effectively solving transmitting terminal veiling glare enter detector problem, also cannot effectively solving ceramic end surface launching light enter detector problem.
The content of the invention
The present invention will provide that a kind of simple structure, production difficulty be low, the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex of low crosstalk.
In order to solve above-mentioned technical problem, the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex of the present invention, including housing, the tail optical fiber being arranged in housing and the threeway metal pedestal for being connected to housing upper end, the other end of threeway metal pedestal is provided with laser instrument, the side mouth of threeway metal pedestal is vertically arranged with housing, one light splitting bar is installed in the side mouth of threeway metal pedestal, one detector is installed in light splitting bar, one light splitting piece being located in threeway metal pedestal is installed on light splitting bar, an installing hole relative with side mouth is provided with threeway metal pedestal, extinction lid is installed in the installing hole.
Regulation ring is provided between the housing and threeway metal pedestal.
The light splitting bar include the pedestal that is engaged with side mouth and is relatively large in diameter and with the less extension of the integrally formed diameter of pedestal, the extension of the light splitting bar is extend into threeway metal pedestal, and the light splitting piece is placed in the extension of light splitting bar.
The tail optical fiber includes ceramic insertion core and the fiber core being placed in ceramic insertion core, and the end of the fiber core is stretched out outside ceramic insertion core.
Black glue is scribbled on the ceramic insertion core.
After above-mentioned structure, due to the threeway metal pedestal and the light splitting bar of special construction of setting, light splitting bar loads from the detector hole of threeway metal pedestal, light splitting bar can block the veiling glare of transmitting terminal, considerably reduce crosstalk, using special construction tail optical fiber, fiber core stretches out ceramic insertion core, make ceramic insertion core with the long and slender core of optical fiber not on same optical plane, apply black glue extinction on ceramic insertion core simultaneously, ceramic insertion core can be avoided to emit light into detector, its simple structure, convenient for production, production difficulty is low, has good value for applications.
Description of the drawings
Fig. 1 is the structural representation of the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex of the present invention.
Specific embodiment
With reference to the accompanying drawings and detailed description, the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex of the present invention is described in further detail.
As shown in the figure, the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex of the present invention, including housing, the tail optical fiber 5 being arranged in housing and the threeway metal pedestal 2 for being connected to housing upper end, regulation ring 6 is provided between housing and threeway metal pedestal 2, the other end of threeway metal pedestal 2 is provided with laser instrument 1, the side mouth of threeway metal pedestal 2 is vertically arranged with housing, one light splitting bar 3 is installed in the side mouth of threeway metal pedestal 2, one detector 4 is installed in light splitting bar 3, one light splitting piece 7 being located in threeway metal pedestal 2 is installed on light splitting bar 3, light splitting piece 7 is 45 ° of light splitting pieces, an installing hole relative with side mouth is provided with threeway metal pedestal 2, extinction lid 8 is installed in installing hole.Extinction lid 8 is designed using hierarchic structure, veiling glare on the upside of the laser instrument bar 3 that is split is blocked, veiling glare on the downside of laser instrument is incided and can be reflected into upwards after threeway metalwork seat 2 detector 4, the present invention devises extinction lid 8, black glue is first applied on extinction lid 8 and is solidified, extinction lid 8 is crimped into threeway metalwork seat 2 again, because of the special stepped design of extinction lid, black glue can form cone, veiling glare can greatly be absorbed, the unabsorbed veiling glare of only a few is launched by cone with wide-angle, it is impossible to reach detector 4, so as to crosstalk is greatly reduced.
Wherein, described light splitting bar 3 include the pedestal that is engaged with side mouth and is relatively large in diameter and with the less extension of the integrally formed diameter of pedestal, the extension of light splitting bar 3 is extend into threeway metal pedestal 2, light splitting piece 7 is placed in the extension of light splitting bar 3, described tail optical fiber includes ceramic insertion core and the fiber core being placed in ceramic insertion core, the end of the fiber core is stretched out outside ceramic insertion core, and black glue is scribbled on ceramic insertion core.
The tail optical fiber of the present invention is designed using special construction, and fiber core stretches out ferrule endface and applies black glue on ceramic end face, different from the design that fiber core on the market is concordant with ferrule endface, co-wavelength（The light transmit-receive integrated single-fiber bidirectional device of wavelength-division multiplex）BOSA devices are consistent with detector because of transmitting terminal wavelength, laser instrument is mapped to the reflected light on tail optical fiber comprising fiber core and ceramic end face two parts, fiber core can reduce reflected light by plating anti-reflection film, it is on the market to reduce ceramic area to reduce part by chamfering before ceramic end appearance, but cannot prevents.The present invention stretches out the design of ferrule endface using fiber core, the reflected light of ceramic insertion core is avoided from light path, simultaneously as fiber core has stretched out ceramic end face, black glue can be applied on ceramic end face and absorbs light, black glue forms taper, and angle becomes big after the unabsorbed light transmitting of small part, and light cannot be efficiently entering detector 4, the present invention is greatly reduced ceramic end face reflected light into detector 4 by the particular design of tail optical fiber 5, so as to reduce crosstalk.
In manufacturing process, laser instrument 1 is crimped onto in threeway metalwork seat 2, then is fixed using Laser Welding, not only ensure that concentricity but also improve packaging efficiency, power stability is also improved；Light splitting bar 3 is put into threeway metalwork seat 2, fixed using Laser Welding again, by light splitting piece 7 and light splitting bar 3 using glue it is bonding again together with, because light splitting bar 3 is assembled using special construction from the detector hole of threeway metalwork, light splitting bar 3 forms circular shelter in detector surrounding, only retain detector 4 main optical path hole, block veiling glare, the multiple veiling glare of transmitting on threeway metalwork seat 2 launched on the veiling glare, tail optical fiber 5 that laser instrument 1 sends.The veiling glare bar 3 that is split is blocked and cannot be introduced into detector 4, so as to crosstalk can be reduced, in manufacturing process, using common three-dimensional laser device coupling cramp coupling firing end, the light transmission that laser instrument 1 sends is set to cross after light splitting piece 7, incide in tail optical fiber 5 and export optical signal, complete after coupling using Laser Welding secured adjusted ring 6；Detector 4 lens profile point black glue and solidify, the purpose of lens profile point black glue is further to block veiling glare into detector 4, reuse three-dimensional coupling cramp and the optical coupling of the outgoing of tail optical fiber 5 is entered into detector chip, realize that optical signal is converted into electric signal output, light-receiving detector 4 and light splitting bar 3 are fixed using glue after the completion of coupling.
Claims (5)
1. a kind of light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex, including housing, the tail optical fiber being arranged in housing（5）And it is connected to the threeway metal pedestal of housing upper end（2）, it is characterised in that：The threeway metal pedestal（2）Other end laser instrument is installed（1）, the threeway metal pedestal（2）Side mouth be vertically arranged with housing, the threeway metal pedestal（2）Side mouth in a light splitting bar is installed（3）, light splitting bar（3）One detector of interior installation（4）, the light splitting bar（3）On be provided with one be located at threeway metal pedestal（2）Interior light splitting piece（7）, the threeway metal pedestal（2）On be provided with an installing hole relative with side mouth, extinction lid is installed in the installing hole（8）.
2. according to the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex described in claim 1, it is characterised in that：The housing and threeway metal pedestal（2）Between be provided with regulation ring（6）.
3. according to the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex described in claim 1, it is characterised in that：The light splitting bar（3）Include the pedestal that is engaged with side mouth and is relatively large in diameter and with the less extension of the integrally formed diameter of pedestal, the light splitting bar（3）Extension extend into threeway metal pedestal（2）It is interior, the light splitting piece（7）It is placed in light splitting bar（3）Extension.
4. according to the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex described in claim 1, it is characterised in that：The tail optical fiber includes ceramic insertion core and the fiber core being placed in ceramic insertion core, and the end of the fiber core is stretched out outside ceramic insertion core.
5. according to the light transmit-receive integrated single-fiber bidirectional device of co-wavelength wavelength-division multiplex described in claim 4, it is characterised in that：Black glue is scribbled on the ceramic insertion core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742828.9A CN106646771A (en) | 2015-11-04 | 2015-11-04 | Same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510742828.9A CN106646771A (en) | 2015-11-04 | 2015-11-04 | Same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106646771A true CN106646771A (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510742828.9A Pending CN106646771A (en) | 2015-11-04 | 2015-11-04 | Same wavelength division multiplexing optical transceiver one-body single fiber bidirectional device |
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|---|---|
| CN (1) | CN106646771A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794528A (en) * | 2019-12-06 | 2020-02-14 | 无锡市德科立光电子技术有限公司 | BOSA optical device applied to OTDR ranging and receiving with same wavelength |
| CN111596424A (en) * | 2020-06-17 | 2020-08-28 | 江苏飞格光电有限公司 | Adjustable low-crosstalk same-wavelength division multiplexing light receiving and transmitting integrated single-fiber bidirectional device |
| CN114236704A (en) * | 2021-11-04 | 2022-03-25 | 江苏爱得科光子技术有限公司 | High-heat-dissipation wavelength division multiplexing light receiving and transmitting integrated single-fiber bidirectional device |
| CN114236705A (en) * | 2021-11-04 | 2022-03-25 | 江苏爱得科光子技术有限公司 | Assembled wavelength division multiplexing light-receiving and light-emitting integrated single-fiber bidirectional device |
-
2015
- 2015-11-04 CN CN201510742828.9A patent/CN106646771A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794528A (en) * | 2019-12-06 | 2020-02-14 | 无锡市德科立光电子技术有限公司 | BOSA optical device applied to OTDR ranging and receiving with same wavelength |
| CN111596424A (en) * | 2020-06-17 | 2020-08-28 | 江苏飞格光电有限公司 | Adjustable low-crosstalk same-wavelength division multiplexing light receiving and transmitting integrated single-fiber bidirectional device |
| CN114236704A (en) * | 2021-11-04 | 2022-03-25 | 江苏爱得科光子技术有限公司 | High-heat-dissipation wavelength division multiplexing light receiving and transmitting integrated single-fiber bidirectional device |
| CN114236705A (en) * | 2021-11-04 | 2022-03-25 | 江苏爱得科光子技术有限公司 | Assembled wavelength division multiplexing light-receiving and light-emitting integrated single-fiber bidirectional device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
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| WD01 | Invention patent application deemed withdrawn after publication |