CN103257414A - Parallel light transmitting and receiving assembly for broadband high-speed transmission - Google Patents
Parallel light transmitting and receiving assembly for broadband high-speed transmission Download PDFInfo
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- CN103257414A CN103257414A CN2013101641982A CN201310164198A CN103257414A CN 103257414 A CN103257414 A CN 103257414A CN 2013101641982 A CN2013101641982 A CN 2013101641982A CN 201310164198 A CN201310164198 A CN 201310164198A CN 103257414 A CN103257414 A CN 103257414A
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Abstract
The invention relates to a parallel light transmitting and receiving assembly for broadband high-speed transmission. A signal input port is formed at one end of a first printed circuit board, a trans-impedance amplifier (TIA), a laser driving chip, a photoelectric detector (PD) array and a VCSEL perpendicular cavity transmitting laser array are packaged on the surface of a second printed circuit board, the front end of an optical fiber array is placed in an optical fiber fixing assembly, the optical fiber array aligns at the PD array in a coupling mode, and the optical fiber array aligns at the VCSEL perpendicular cavity transmitting laser array in a coupling mode. The optical fiber fixing assembly comprises a base, an optical fiber orientation conversion piece base plate and a covering plate, slant steps are arranged on the surface of the optical fiber orientation conversion piece base plate, a V-shaped groove is carved in an upper step, a lower step is a plane, bare fibers of an optical fiber array are placed in the V-shaped groove, the covering plate covers the V-shaped groove, and the optical fiber orientation conversion piece base plate, the covering plate and the base are connected through fixing glue. The technology combining a soft plate and the hard plate is adopted, and optical coupling is carried out on the VCSEL perpendicular cavity transmitting laser array and the PD photoelectric detector array by the driving aligning technology.
Description
Technical field
The present invention relates to the parallel light transmitting-receiving subassembly of broadband high-speed transmission, relate in particular to a kind of parallel light transmitting-receiving subassembly and optical fiber fixture thereof for the broadband high-speed transmission.
Background technology
Along with the raising that the signal high-speed transfer is required, parallel light transmitting-receiving subassembly arises at the historic moment.Parallel optical module is the mutual conversion that realizes multi-channel electric signal and light signal in a monomer structure, thereby realizes transmission-receiving function.Because device is integrated and miniaturization brings high bandwidth density and low-power consumption, makes the transmission bandwidth of parallel optical module and use power consumption be better than a plurality of discrete devices greatly, thereby improved the transmission performance of system.
Yet the rigging error that the existence of a plurality of discrete components allows when making the parallel optical module package is littler, and alignment precision requires higher, has higher requirement to guaranteeing high coupling efficiency in the encapsulation.Existing technology is to be equipped with surface-mounted integrated circuits such as TIA trans-impedance amplifier, Driver driving and to be equipped with optical assemblies such as Lens lens arra that PD photodetector array, VCSEL vertical cavity emitting laser array, relevant coupled fiber use and other optical conenctors and finally to form module with module housing again.The encapsulating structure complexity, difficulty of processing is big, and the process time is long, the cost height.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, a kind of parallel light transmitting-receiving subassembly for the broadband high-speed transmission is provided.
Purpose of the present invention is achieved through the following technical solutions:
Be used for the parallel light transmitting-receiving subassembly of broadband high-speed transmission, characteristics are: the soft board, TIA trans-impedance amplifier, laser driving chip, PD photodetector array, VCSEL vertical cavity emitting laser array, fiber array and the optical fiber fixation kit that comprise first printed circuit board (PCB), second printed circuit board (PCB), connection first printed circuit board (PCB) and second printed circuit board (PCB); One end of described first printed circuit board (PCB) forms the signal input port of a gold-plated plate structure, second printed circuit board surface encapsulation TIA trans-impedance amplifier, laser driving chip, PD photodetector array and VCSEL vertical cavity emitting laser array, the fiber array front end places in the optical fiber fixation kit, and fiber array and PD photodetector array and VCSEL vertical cavity emitting laser array are coupled and aligned;
Described optical fiber fixation kit comprises pedestal, optical fiber orientation bridgeware base plate and overlay, optical fiber orientation bridgeware backplate surface is provided with the sloping platform rank, top bar and be carved with the V-type groove, get out of a predicament or an embarrassing situation and be the plane, place the naked fibre of fiber array in the V-type groove, be stamped overlay on it, the naked fine length that the front end of fiber array exposes is consistent with the length of topping bar, and optical fiber orientation bridgeware base plate and overlay and pedestal are glued at one by fixing glue.
Further, the above-mentioned parallel light transmitting-receiving subassembly that is used for the broadband high-speed transmission, the optical fiber that described fiber array comprises more than eight and parallel equidistant is arranged, the naked fibre that the front end of optical fiber exposes place in the V-type groove of optical fiber orientation bridgeware base plate.
Further, the above-mentioned parallel light transmitting-receiving subassembly that is used for the broadband high-speed transmission, described fiber array is divided equally two groups, its coupling surface with man-to-man mode respectively with the active center regional alignment of PD photodetector array and VCSEL vertical cavity emitting laser array.
Again further, the above-mentioned parallel light transmitting-receiving subassembly that is used for the broadband high-speed transmission, the homonymy of described VCSEL vertical cavity emitting laser array is placed with the rectangular parallelepiped pad.
Substantive distinguishing features and obvious improvement that technical solution of the present invention is outstanding are mainly reflected in:
The present invention has designed the parallel light transmitting-receiving subassembly of a kind of simple broadband high-speed transmission, adopt the manufacturing technology of unique rigid-flex combination, adopt the active alignment technology to carry out optical coupled to VCSEL laser array and PD photodetector array, saved the use of optical lens, and utilized optical fiber fixture more easily, realized the optical package of high coupling efficiency, reduced the technology difficulty that photoelectric component array placement accuracy and photoelectric component are connected with optical fiber, and promoted assembled error tolerance, cut down finished cost, be more suitable for mass production applications.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: structural representation of the present invention;
Fig. 2: photoelectric device encapsulating structure synoptic diagram;
Fig. 3: the structural representation of optical fiber fixation kit.
Embodiment
As shown in Figure 1, be used for the parallel light transmitting-receiving subassembly that broadband high-speed transmits, comprise soft board 3, TIA trans-impedance amplifier 6, laser driving chip 7, PD photodetector array 8, VCSEL vertical cavity emitting laser array 9, fiber array 5 and the optical fiber fixation kit 4 of first printed circuit board (PCB) 1, second printed circuit board (PCB) 2, connection first printed circuit board (PCB) 1 and second printed circuit board (PCB) 2; One end of first printed circuit board (PCB) 1 forms the signal input port of a gold-plated plate structure, as shown in Figure 2, second printed circuit board (PCB), 2 surfaces encapsulate TIA trans-impedance amplifier 6, laser driving chip 7, PD photodetector array 8 and VCSEL vertical cavity emitting laser array 9 by gold thread bonding mode, fiber array 5 front ends place in the optical fiber fixation kit 4, and fiber array 5 is coupled and aligned with PD photodetector array 8 and VCSEL vertical cavity emitting laser array 9 and carries out the signal transmission.
As shown in Figure 3, optical fiber fixation kit 4 comprises pedestal 12, optical fiber orientation bridgeware base plate 11 and overlay 13, and pedestal 12 is provided with screw, is used for pedestal and fixes; Optical fiber orientation bridgeware base plate 11 surfaces are provided with the sloping platform rank, top bar and be carved with the V-type groove, get out of a predicament or an embarrassing situation and be the plane, place the naked fibre of fiber array 5 in the V-type groove, be stamped overlay 13 on it, the naked fine length that the front end of fiber array 5 exposes is consistent with the length of topping bar, and optical fiber orientation bridgeware base plate 11 and overlay 13 and pedestal 12 are glued at one by fixing glue.During use, earlier front end having been leaked the fiber array 5 that naked fibre is arranged is placed on the optical fiber orientation bridgeware base plate 11 and is mated, apply the UV fixing glue, put overlay 13, and simultaneously optical fiber is orientated the curing of adjusting with the UV fixing glue, and then the optical fiber that utilizes the UV fixing glue will have fiber array 5 is orientated bridgeware base plate 11 and pedestal 12 is bonding, and simultaneously optical fiber is orientated the curing of adjusting with the UV fixing glue, at last pedestal 12 and the draw-in groove place gluing of the rigid-flex that carries photoelectric component by pedestal the place ahead are fixed.
Wherein, the optical fiber that fiber array 5 comprises more than eight and parallel equidistant is arranged, the naked fibre that the front end of optical fiber exposes places in the V-type groove of optical fiber orientation bridgeware base plate 11, realizes center, effective coverage and the control of the high coupling efficiency between the fiber array of photoelectric component array by optical fiber fixation kit 4.
The homonymy of VCSEL vertical cavity emitting laser array 9 is placed with rectangular parallelepiped pad 10, prevents that optical fiber fixation kit 4 from breaking photoelectric device with PD photodetector array 8 and 9 couplings of VCSEL vertical cavity emitting laser array the time.
The present invention has designed the parallel light transmitting-receiving subassembly of a kind of simple broadband high-speed transmission, adopt the manufacturing technology of unique rigid-flex combination, adopt the active alignment technology to carry out optical coupled to VCSEL laser array and PD photodetector array, saved the use of optical lens, and utilized optical fiber fixture more easily, realized the optical package of high coupling efficiency, reduced the technology difficulty that photoelectric component array placement accuracy and photoelectric component are connected with optical fiber, and promoted assembled error tolerance, cut down finished cost, be more suitable for mass production applications.
What need understand is: the above only is preferred implementation of the present invention; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. be used for the parallel light transmitting-receiving subassembly of broadband high-speed transmission, it is characterized in that: the soft board, TIA trans-impedance amplifier, laser driving chip, PD photodetector array, VCSEL vertical cavity emitting laser array, fiber array and the optical fiber fixation kit that comprise first printed circuit board (PCB), second printed circuit board (PCB), connection first printed circuit board (PCB) and second printed circuit board (PCB); One end of described first printed circuit board (PCB) forms the signal input port of a gold-plated plate structure, second printed circuit board surface encapsulation TIA trans-impedance amplifier, laser driving chip, PD photodetector array and VCSEL vertical cavity emitting laser array, the fiber array front end places in the optical fiber fixation kit, and fiber array and PD photodetector array and VCSEL vertical cavity emitting laser array are coupled and aligned;
Described optical fiber fixation kit comprises pedestal, optical fiber orientation bridgeware base plate and overlay, optical fiber orientation bridgeware backplate surface is provided with the sloping platform rank, top bar and be carved with the V-type groove, get out of a predicament or an embarrassing situation and be the plane, place the naked fibre of fiber array in the V-type groove, be stamped overlay on it, the naked fine length that the front end of fiber array exposes is consistent with the length of topping bar, and optical fiber orientation bridgeware base plate and overlay and pedestal are glued at one by fixing glue.
2. the parallel light transmitting-receiving subassembly for broadband high-speed transmission according to claim 1, it is characterized in that: the optical fiber that described fiber array comprises more than eight and parallel equidistant is arranged, the naked fibre that the front end of optical fiber exposes place in the V-type groove of optical fiber orientation bridgeware base plate.
3. the parallel light transmitting-receiving subassembly for broadband high-speed transmission according to claim 1 and 2, it is characterized in that: described fiber array is divided equally two groups, its coupling surface with man-to-man mode respectively with the active center regional alignment of PD photodetector array and VCSEL vertical cavity emitting laser array.
4. the parallel light transmitting-receiving subassembly for broadband high-speed transmission according to claim 1, it is characterized in that: the homonymy of described VCSEL vertical cavity emitting laser array is placed with the rectangular parallelepiped pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310164198.2A CN103257414B (en) | 2013-05-07 | 2013-05-07 | For the parallel light transceiver component of broadband high-speed transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310164198.2A CN103257414B (en) | 2013-05-07 | 2013-05-07 | For the parallel light transceiver component of broadband high-speed transmission |
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| CN103257414A true CN103257414A (en) | 2013-08-21 |
| CN103257414B CN103257414B (en) | 2015-08-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9680573B2 (en) | 2014-08-07 | 2017-06-13 | Optomedia Technology Inc. | Optical transceiver |
| CN109921199A (en) * | 2019-03-05 | 2019-06-21 | 成都雷电微力科技有限公司 | A kind of airproof T/R module of double bamboo plywood transceiving chip |
| CN114325966A (en) * | 2021-12-29 | 2022-04-12 | 中国电子科技集团公司第四十四研究所 | Binary array optical fiber coupling structure of balanced photoelectric detector and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9680573B2 (en) | 2014-08-07 | 2017-06-13 | Optomedia Technology Inc. | Optical transceiver |
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| CN109921199A (en) * | 2019-03-05 | 2019-06-21 | 成都雷电微力科技有限公司 | A kind of airproof T/R module of double bamboo plywood transceiving chip |
| CN114325966A (en) * | 2021-12-29 | 2022-04-12 | 中国电子科技集团公司第四十四研究所 | Binary array optical fiber coupling structure of balanced photoelectric detector and manufacturing method |
| CN114325966B (en) * | 2021-12-29 | 2023-04-28 | 中国电子科技集团公司第四十四研究所 | Balanced photoelectric detector binary array optical fiber coupling structure and manufacturing method |
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| CN103257414B (en) | 2015-08-12 |
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Effective date of registration: 20190130 Address after: 244002 No. 5555, West Section of Cuihu Fourth Road, Tongling Economic and Technological Development Zone, Anhui Province Patentee after: Tongling Xuchuang Technology Co., Ltd. Address before: 215021 Creative Industry Park 12-A3, 328 Xinghu Street, Suzhou City Park, Jiangsu Province Patentee before: Innolight Technology Ltd. |
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