CN103763034A - Wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and mounting clamp thereof - Google Patents
Wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and mounting clamp thereof Download PDFInfo
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- CN103763034A CN103763034A CN201410008002.5A CN201410008002A CN103763034A CN 103763034 A CN103763034 A CN 103763034A CN 201410008002 A CN201410008002 A CN 201410008002A CN 103763034 A CN103763034 A CN 103763034A
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Abstract
The invention relates to a wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and a mounting clamp thereof. The wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component for optical communication comprises a shell with a Y-shaped inner cavity formed by a transmitting cavity, a tail fiber cavity and a detector cavity, the optical transmitting cavity and the tail fiber cavity are coaxially arranged, the front end of the detector cavity is joined with the transmitting cavity and the tail fiber cavity, and a 24-degree intersection angle is formed between the central line of the detector cavity and the central line of the tail fiber cavity. An optical transmitting flat window laser device, a collimating lens and an isolator are coaxially mounted at the front end of the transmitting cavity, a tail fiber of a collimator is coaxially mounted in the tail fiber cavity in an inserted mode, and an optical receiving detector is mounted at the rear end of the detector cavity. A 12-degree wavelength division multiplexing beam splitting piece is mounted on the intersection of the detector cavity, the transmitting cavity and the tail fiber cavity. The multiplexing line numbers of a wavelength division multiplexing system are improved, and the resource use efficiency and the network bandwidth of a wavelength division multiplexing single-fiber bothway system are improved effectively.
Description
Technical field
The invention belongs to laser communication technology field, relate to a kind of optical communication light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing and sectional fixture thereof.
Background technology
At present, the wavelength division multiplexing single fiber bi-directional communication technology has obtained application very widely at optical communication field, as the core component of wavelength division multiplexing single fiber bi-directional optical communication---the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing also has diversified design, but current scheme is all to use 45 degree light splitting pieces, and detector and laser angle are 90 degree.There is the shortcoming that multiplexing way is few in this class formation, at present can only multiplexing 13 tunnels: receiving terminal is 1550nm, and transmitting terminal is 1270nm, 1290nm, 1310nm, 1330nm, 1350nm, 1370nm, 1390nm, 1410nm, 1430nm, 1450nm, 1470nm, 1490nm, 1610nm.Because receiving terminal wavelength is 1550nm, 1510nm, 1530nm, 1570nm and the 1590nm of transmitting terminal cannot divide out with 45 degree light splitting pieces and 1550nm.Therefore can only, below multiplexing 13 tunnels, cannot realize the object on multiplexing 17 tunnels, waste the resource of wavelength-division multiplex system.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of simple in structure, producting process difficulty is low, cost is low, utilizing emitted light power or receive the easily wavelength division multiplexing single-fiber bidirectional device of coupling and good stability of responsiveness.
Optical communication of the present invention includes a housing with Y shape inner-cavity structure consisting of emission cavity, tail optical fiber chamber and detector cavity with the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing, coaxial setting before and after described smooth emission cavity and tail optical fiber chamber, detector cavity front end and emission cavity and tail optical fiber chamber cross and detector cavity center line and tail optical fiber chamber center line have 24 ° of angles; Described emission cavity front end is coaxially installed with light and launches flat window laser, collimating lens and isolator, and described tail optical fiber is coaxially fitted with collimater tail optical fiber in chamber, and described detector cavity rear end is provided with light-receiving detector; The intersection in described detector cavity, emission cavity and tail optical fiber chamber is provided with axis and light-receiving detector axis and has 12 ° of wavelength division multiplexing light splitting pieces of 12 ° of angles.
Described 12 ° of wavelength division multiplexing light splitting pieces are arranged on 12 ° of bearings that are positioned at detector cavity front end, described 12 ° of bearing front ends are a circular placement seat that is used for settling 12 ° of wavelength division multiplexing light splitting pieces, back segment is a semicylindrical mounting cylinder, and the semicylindrical entity part of mounting cylinder and the front inner wall coaxial cooperation of detector cavity are installed.
Described collimating lens and isolator are coaxially arranged on a lens mount, lens mount rear end and emission cavity front end are connected, described light is launched flat window laser and is arranged on a laser bearing, is connected with the adjustable ring of adjustable distance between the two between laser bearing and lens mount.
The inner side of described light-receiving detector is provided with filter bearing and is arranged on 0 ° of filter on filter bearing.
Sectional fixture for the light transmit-receive integrated single-fiber bidirectional device of above-mentioned wavelength division multiplexing of the present invention includes a pedestal, pedestal top is provided with a reference column that can insert and coordinate with detector cavity from detector cavity rear end, and the root of reference column has first locating surface that can coordinate with the rear end face of the detector cavity of described housing location; At other second locating surface that can coordinate with the tail optical fiber cavity rear end face of described housing location that is provided with of the first locating surface; At the top of reference column, be provided with the 3rd locating surface that coordinates location with the placement seat rear end face on described 12 ° of bearings; On the external cylindrical surface of the upper end of reference column one side, have the breach of the semi-annular shape that coordinates location with the semi-cylindrical shaped mounting cylinder on described 12 ° of bearings.
The present invention adopts directional light to coordinate 12 ° of wavelength division multiplexing light splitting pieces of particular design, 1510nm, 1530nm, 1570nm and the 1590nm of transmitting terminal and the object that 1550nm divides out have been realized, improved the multiplexing way of wavelength-division multiplex system, by current 13 road, rise to 17 tunnels, effectively promoted the level of resources utilization and the network bandwidth of wavelength division multiplexing single fiber bi-directional system; In addition, utilize sectional fixture of the present invention to 12 ° of wavelength division multiplexing light splitting pieces and 12 ° of bearings in single-fiber bidirectional device of the present invention, to position installation and bonding easily, effectively improved manufacture efficiency and the accuracy of manufacture.
Accompanying drawing explanation
Fig. 1 is the light transmit-receive integrated single-fiber bidirectional device vertical section structure of the optical communication wavelength division multiplexing schematic diagram of the embodiment of the present invention;
Fig. 2 is 12 ° of bearing perspective view of the embodiment of the present invention;
Fig. 3 is that the sectional fixture of the embodiment of the present invention is for the structural representations of housing and 12 ° of bearings and 12 ° of wavelength division multiplexing light splitting piece installations.
Fig. 4 is the perspective view on the sectional fixture top of the embodiment of the present invention.
Embodiment
Reference numeral comprises: light is launched flat window laser 01; Laser bearing 02; Adjustable ring 03; Lens mount 04; Collimating lens 05; Isolator 06; Housing 07; Emission cavity 071; Tail optical fiber chamber 072; Detector cavity 073; 12 ° of bearings 08; Placement seat 081; Mounting cylinder 082; 12 ° of wavelength division multiplexing light splitting pieces 09; 0 ° of filter 10; Filter bearing 11; Light-receiving detector 12; Collimater tail optical fiber 13; Pedestal 14; Reference column 141; The first locating surface 142; The second locating surface 143; The 3rd locating surface 144; Breach 145.
As shown in Figure 1, this optical communication includes a housing with Y shape inner-cavity structure 07 consisting of emission cavity 071, tail optical fiber chamber 072 and detector cavity 073 with the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing, described smooth emission cavity 071 and 072 front and back, tail optical fiber chamber coaxially arrange, and detector cavity front end and emission cavity and tail optical fiber chamber cross and detector cavity 073 center line and tail optical fiber chamber 072 center line have 24 ° of angles; Described emission cavity front end is coaxially installed with light and launches flat window laser 01, collimating lens 05 and isolator 06, and described tail optical fiber is coaxially fitted with collimater tail optical fiber 13 in chamber, and described detector cavity rear end is provided with light-receiving detector 12; The intersection in described detector cavity, emission cavity and tail optical fiber chamber is provided with axis and light-receiving detector axis and has 12 ° of wavelength division multiplexing light splitting pieces 09 of 12 ° of angles.Described 12 ° of wavelength division multiplexing light splitting pieces are arranged on 12 ° of bearings 08 that are positioned at detector cavity front end, as shown in Figure 2, described 12 ° of bearing 08 front ends are a circular placement seat 081 that is used for settling 12 ° of wavelength division multiplexing light splitting pieces 09, back segment is a semicylindrical mounting cylinder 082, and the semicylindrical entity part of mounting cylinder and the front inner wall coaxial cooperation of detector cavity 073 are installed.Described collimating lens 05 and isolator 06 are coaxially arranged on a lens mount 04, lens mount 04 rear end and emission cavity 071 front end are connected, described light is launched flat window laser 01 and is arranged on a laser bearing 02, is connected with the adjustable ring 03 of adjustable distance between the two between laser bearing 02 and lens mount 04.The inner side of described light-receiving detector 12 is provided with filter bearing 11 and is arranged on 0 ° of filter 10 on filter bearing.
As shown in Figure 3, Figure 4, the sectional fixture of the embodiment of the present invention includes a pedestal 14, pedestal top is provided with a reference column 141 that can insert and coordinate with detector cavity from detector cavity 073 rear end, and the root of reference column has first locating surface 142 that can coordinate with the rear end face of the detector cavity of described housing 073 location; At other second locating surface 143 that can coordinate with tail optical fiber chamber 072 rear end face of described housing location that is provided with of the first locating surface; At the top of reference column, be provided with the 3rd locating surface 144 that coordinates location with placement seat 081 rear end face on described 12 ° of bearings; On the external cylindrical surface of the upper end of reference column one side, have the breach 145 of the semi-annular shape that coordinates location with the semi-cylindrical shaped mounting cylinder 082 on described 12 ° of bearings.
When in the embodiment of the present invention, sectional fixture is used for installing, as shown in Figure 3, first 12 ° of wavelength division multiplexing light splitting pieces 09 are bonded on 12 ° of bearings 08; 12 ° of bearings adopt special semi-cylindrical shaped design, both can guarantee to assemble concentricity, have avoided again the frequency modulated light of collimation tail optical fiber side, also can guarantee 12 ° of 12 ° of light splitting piece axis and tail optical fiber incident light normal angles, and precision is controlled in 0.5 degree.The present invention adopts the mode of 12 ° of fixture inclinations, has avoided the band angle of inclination circular shaft part of processed complex, has not only reduced cost but also improved precision, because semicircular cylinder is processed in release position, cost is low simultaneously, and precision is high.Again 12 ° of bearings 08 that glue light splitting piece are utilized the 3rd locating surface 144 and breach 145 on fixture pedestal 14 to be fixed in housing 07, re-use glue and fix 12 ° of bearings 08 and housing 07, fixture can guarantee distance and the angle of light splitting piece, has realized 12 ° of wavelength division multiplexing light splitting pieces 09 of low cost assembling.
Collimating lens 05 and isolator 06 are bonded in lens mount 04, and lens mount 04 processing that is the integrated design, has not only guaranteed concentricity but also reduced cost, and power stability also improves.Adopt Laser Welding to fix lens mount 04 and housing.
First light being launched to flat window laser 01 adopts electric resistance welding to fix with laser bearing 02, by adjustable ring 03, be arranged on lens mount 04 again, collimater tail optical fiber 13 penetrates tail optical fiber chamber, use common three-dimensional laser device coupling cramp coupling firing end, make light launch the diverging light that flat window laser 01 sends and become directional light after collimating lens 05, transmitted through 12 ° of wavelength division multiplexing light splitting pieces 09, incide output optical signal in collimation tail optical fiber again, complete the rear Laser Welding that adopts of coupling and fix;
In receiving terminal light path, first 0 ° of filter 10 is bonded on filter bearing 11, again filter bearing 11 is bonded on light-receiving detector 12, the directional light that finally uses four-dimensional coupling cramp that collimater is penetrated is coupled into detector chip, realize light signal and be converted into signal of telecommunication output, be coupled rear employing glue fixed light pick-up probe 12 on housing, because of receiving terminal light path longer, each part's machining errors may cause light path to have slight angle to change, therefore use the coupling table with angle coupling function, guarantee the maximum of receiving terminal responsiveness.
Claims (5)
1. the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing for optical communication, it is characterized in that: it includes a housing with Y shape inner-cavity structure (07) consisting of emission cavity (071), tail optical fiber chamber (072) and detector cavity (073), detector cavity front end and emission cavity and tail optical fiber chamber crosses and detector cavity (073) center line and tail optical fiber chamber (072) center line have 24 ° of angles are coaxially set before and after described smooth emission cavity (071) and tail optical fiber chamber (072); Described emission cavity front end is coaxially installed with light and launches flat window laser (01), collimating lens (05) and isolator (06), is coaxially fitted with collimater tail optical fiber (13) in described tail optical fiber chamber, and described detector cavity rear end is provided with light-receiving detector (12); The intersection in described detector cavity, emission cavity and tail optical fiber chamber is provided with axis and light-receiving detector axis and has 12 ° of wavelength division multiplexing light splitting pieces (09) of 12 ° of angles.
2. the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing for optical communication according to claim 1, is characterized in that: described 12 ° of wavelength division multiplexing light splitting pieces are arranged on the 12 ° of bearings (08) that are positioned at detector cavity front end; Described 12 ° of bearings (08) front end is a circular placement seat (081) that is used for settling 12 ° of wavelength division multiplexing light splitting pieces (09), back segment is a semicylindrical mounting cylinder (082), and the front inner wall coaxial cooperation of the semicylindrical entity part of mounting cylinder and detector cavity (073) is installed.
3. the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing for optical communication according to claim 1, it is characterized in that: described collimating lens (05) and isolator (06) are coaxially arranged on a lens mount (04), lens mount (04) rear end and emission cavity (071) front end are connected, described light is launched flat window laser (01) and is arranged on a laser bearing (02) above, is connected with the adjustable ring (03) of adjustable distance between the two between laser bearing (02) and lens mount (04).
4. the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing for optical communication according to claim 1, is characterized in that: the inner side of described light-receiving detector (12) is provided with filter bearing (11) and is arranged on the 0 ° of filter (10) on filter bearing.
5. for optical communication described in claim 2, use the sectional fixture of the light transmit-receive integrated single-fiber bidirectional device of wavelength division multiplexing for one kind, it is characterized in that: it includes a pedestal (14), pedestal top is provided with a reference column (141) that can insert and coordinate with detector cavity from detector cavity (073) rear end, and the root of reference column has first locating surface (142) that can coordinate with the rear end face of the detector cavity of described housing (073) location; At other second locating surface (143) that can coordinate with tail optical fiber chamber (072) rear end face of described housing location that is provided with of the first locating surface; At the top of reference column, be provided with the 3rd locating surface (144) that coordinates location with placement seat (081) rear end face on described 12 ° of bearings; On the external cylindrical surface of the upper end of reference column one side, have the breach (145) of the semi-annular shape that coordinates location with the semi-cylindrical shaped mounting cylinder (082) on described 12 ° of bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008002.5A CN103763034A (en) | 2014-01-08 | 2014-01-08 | Wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and mounting clamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008002.5A CN103763034A (en) | 2014-01-08 | 2014-01-08 | Wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and mounting clamp thereof |
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| CN103763034A true CN103763034A (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410008002.5A Pending CN103763034A (en) | 2014-01-08 | 2014-01-08 | Wavelength division multiplexing light receiving and transmitting integrated single-fiber bothway component and mounting clamp thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596818A (en) * | 2019-10-17 | 2019-12-20 | 中天宽带技术有限公司 | Film filter sheet type wavelength division multiplexer surface mounting tool and process |
Citations (5)
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| US5774486A (en) * | 1996-04-30 | 1998-06-30 | Motorola, Inc. | Waveguide power monitoring system for vertical cavity surface emitting lasers |
| CN101666893A (en) * | 2009-06-25 | 2010-03-10 | 浙江大学 | Monolithically integrated multiplexer transceiver based on etched diffraction grating |
| CN202159164U (en) * | 2011-08-02 | 2012-03-07 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmit-receive integrated assembly used in optical line terminal |
| CN102778734A (en) * | 2012-07-06 | 2012-11-14 | 江苏飞格光电有限公司 | Optical transmitting and receiving integral single-fiber bidirectional device and assembling fixture thereof |
| CN103487899A (en) * | 2013-09-17 | 2014-01-01 | 中国科学院半导体研究所 | Single-fiber bi-directional light receiving and emitting device |
-
2014
- 2014-01-08 CN CN201410008002.5A patent/CN103763034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5774486A (en) * | 1996-04-30 | 1998-06-30 | Motorola, Inc. | Waveguide power monitoring system for vertical cavity surface emitting lasers |
| CN101666893A (en) * | 2009-06-25 | 2010-03-10 | 浙江大学 | Monolithically integrated multiplexer transceiver based on etched diffraction grating |
| CN202159164U (en) * | 2011-08-02 | 2012-03-07 | 深圳新飞通光电子技术有限公司 | Single fiber bidirectional light transmit-receive integrated assembly used in optical line terminal |
| CN102778734A (en) * | 2012-07-06 | 2012-11-14 | 江苏飞格光电有限公司 | Optical transmitting and receiving integral single-fiber bidirectional device and assembling fixture thereof |
| CN103487899A (en) * | 2013-09-17 | 2014-01-01 | 中国科学院半导体研究所 | Single-fiber bi-directional light receiving and emitting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596818A (en) * | 2019-10-17 | 2019-12-20 | 中天宽带技术有限公司 | Film filter sheet type wavelength division multiplexer surface mounting tool and process |
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Application publication date: 20140430 |