CN102324684B - Small optical fiber amplifier - Google Patents
Small optical fiber amplifier Download PDFInfo
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- CN102324684B CN102324684B CN201110222135.9A CN201110222135A CN102324684B CN 102324684 B CN102324684 B CN 102324684B CN 201110222135 A CN201110222135 A CN 201110222135A CN 102324684 B CN102324684 B CN 102324684B
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Abstract
The invention relates to a small optical fiber amplifier. The small optical fiber amplifier comprises a shell, as well as a circuit device and an optical path device which are arranged in the shell, wherein the shell consists of an upper cover plate, a module base and a lower cover plate, a partition plate is arranged in the middle of the module base and divides the module base into an upper space and a lower space, the optical path device is arranged in the upper space, and the circuit device is arranged in the lower space. In the invention, the partition plate divides the shell of the amplifier into two spaces, the optical path device and the circuit device are arranged in a layering manner, thus being capable of optimizing the internal distribution of the product, reducing the spatial dimension of the product, and leading the product to meet the demand of a 40G transmission system of a new-generation transmission network; and the appearance dimension is only 60*40*15mm.
Description
Technical field
The present invention relates to the erbium-doped fiber amplifier (Erbium Doped Fiber Amplifier-EDFA) for Optical Transmission Network OTN, specifically a kind of Miniature fiber amplifier.
Background technology
Fiber amplifier is the revolutionary product of communication industry development, and it is widely used in the fields such as optical communication, optical-fiber network, cable TV and national defence, is the new industry of 21 century.Fiber amplifier comprises doped optical fibre amplifier, fiber nonlinear effect amplifier etc., it is the Primary Component in light transmission, wherein erbium-doped fiber amplifier (Erbium Doped Fiber Amplifier-EDFA) utilizes Er-doped fiber directly to amplify light signal, has thoroughly eradicated the electronics " bottleneck " forming in traditional photoelectric repeater; Because of its have that gain is high, noise is low, power is large, working band is wide, polarization irrelevant, channel interference are little, to transmission code rate and form and the good characteristic such as system upgrade is transparent, be the desired light amplifier in high speed fibre transmission network, wavelength division multiplexing (WDM) transmission technology realizes two-forty, the most effective means of high-capacity optical fiber communication now because the support of EDFA becomes.
Along with modern communication fast development, the Optical Transmission Network OTN 40G transmission system of a new generation, requires more and more higher to the overall volume of fiber amplifier (EDFA).At present common EDFA overall dimension is mostly larger, and stock size is 130 × 180 × 20mm; The miniaturization EDFA module overall dimension of MSA agreement regulation is: 90 × 70 × 15mm.The 40G optical transmission system of a new generation is 60 × 40 × 15mm to the shape requirement of EDFA, little more a lot of than at present common EDFA overall dimension, even also half as large many compared with the small-sized EDFA overall dimensions that stipulate with MSA agreement; Therefore the miniaturization EDFA of new generation challenges to circuit, light path, mechanical structure: must overturn mentality of designing, the components and parts selection principle of original conventional EDFA, all are take the minimum dimension, minimum profile that meet performance as prerequisite.
Summary of the invention
The present invention is directed to the problems referred to above, the Miniature fiber amplifier of the desired minimum profile size of a kind of satisfied transmission network 40G transmission system of new generation is provided.
According to technical scheme of the present invention: a kind of Miniature fiber amplifier, comprise housing and be arranged in circuit devcie and the light path devices in described housing, described housing consists of upper cover plate, module base and lower cover, the middle part of described module base is provided with dividing plate, described dividing plate is divided into upper and lower two spaces by described module base, in described upper space, be furnished with described light path devices, in described lower space, be furnished with described circuit devcie.
The vertical consistency of the longitudinal and described module base of described light path devices.
Described circuit devcie comprises printed circuit board (PCB), and described printed circuit board (PCB) is furnished with laser, photodetector and electrical interface in a side of described lower cover, and described laser and described electrical interface parallel longitudinal are arranged, described photodetector transverse arrangement of turbo.
Described laser adopts 8 pins without the serial pumping of refrigeration.
Described printed circuit board (PCB) adopts 6 laminate designs, by the order of top layer, bus plane, the first internal layer, the second internal layer, stratum and bottom, arranges.
Technique effect of the present invention is: the present invention is divided into two spaces by dividing plate by the housing of amplifier, light path devices and circuit devcie layering are placed, interior layout that can optimizing product, reduce the bulk of product, make product meet the requirement of transmission network 40G transmission system of new generation, its overall dimension only has 60 × 40 × 15 mm.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present invention.
Fig. 2 is cross sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
In Fig. 1, Fig. 2, comprise upper cover plate 1, light path devices 2, module base 3, printed circuit board (PCB) 4, photodetector 5, laser 6, electrical interface 7, lower cover 8, dividing plate 9 etc.
As shown in Figure 1 and Figure 2, the present invention is a kind of Miniature fiber amplifier, comprises housing and is arranged in circuit devcie and the light path devices 2 in housing.
Housing consists of upper cover plate 1, module base 3 and lower cover 8, and upper cover plate 1 and lower cover 8 are fixed by screws in respectively on module base 3.The overall dimension of housing only has 60 × 40 × 15 mm, can meet the 40G optical transmission system of new generation shape requirement to EDFA.
In order to realize the miniaturization of amplifier, whole product has adopted hierarchical design, and light path layer and device layer separate.At the middle part of module base 3, be provided with dividing plate 9, dividing plate 9 is divided into upper and lower two spaces by module base 3.In upper space, be furnished with light path devices 2, the vertical consistency of the longitudinal and module base 3 of light path devices 2; In lower space, be furnished with circuit devcie.Such design does not interfere with each other in the production debug process in later stage, in the time of change circuit or light path devices, can not interact.
Circuit devcie comprises printed circuit board (PCB) 4, and printed circuit board (PCB) 4 faces down in a side of cover plate 8 and is furnished with laser 6, photodetector 5 and electrical interface 7, and laser 6 and electrical interface 7 parallel longitudinals are arranged, photodetector 5 transverse arrangement of turbo.In order to reduce bulk, the device adopting is all selected microdevice.
Because power output of the present invention is not very large, and because the overall dimension of module only has 60 × 40 × 15 mm, can only select small-sizedly without refrigeration pumping, laser 6 adopts 8 pins without the serial pumping of refrigeration.Because product is less in normal work schedule heat, heat radiation aspect does not have problem, can meet the requirement of product reliability.
At printed circuit board (PCB) (PCB) 4 design aspects, adopt the square patch of device, as much as possible reduce PCB size; In layout, analog circuit, digital circuit are relatively concentrated and are placed according to function respectively, avoid the interference effect of numerical portion to analog circuit, especially avoid the detection impact on input, output signal light.Due to the square paster of device, fabric swatch density is higher, especially artificial circuit part, and therefore PCB adopts 6 laminate designs, by the order of top layer, bus plane, the first internal layer, the second internal layer, stratum and bottom, arranges.
The present invention is divided into two spaces by dividing plate 9 by the housing of amplifier, light path devices 2 and circuit devcie layering are placed, interior layout that can optimizing product, reduce the bulk of product, make product meet the requirement of transmission network 40G transmission system of new generation, its overall dimension only has 60 × 40 × 15 mm.
Claims (1)
1. a Miniature fiber amplifier, comprise housing and be arranged in circuit devcie and the light path devices (2) in described housing, described housing consists of upper cover plate (1), module base (3) and lower cover (8), the middle part of described module base (3) is provided with dividing plate (9), described dividing plate (9) is divided into upper and lower two spaces by described module base (3), in described upper space, be furnished with described light path devices (2), in described lower space, be furnished with described circuit devcie; It is characterized in that:
The vertical consistency of the longitudinal and described module base (3) of described light path devices (2);
Described circuit devcie comprises printed circuit board (PCB) (4), described printed circuit board (PCB) (4) is furnished with laser (6), photodetector (5) and electrical interface (7) in a side of described lower cover (8), described laser (6) and described electrical interface (7) parallel longitudinal are arranged, described photodetector (5) transverse arrangement of turbo;
Described laser (6) adopts 8 pins without the serial pumping of refrigeration;
Described printed circuit board (PCB) (4) adopts 6 laminate designs, by the order of top layer, bus plane, the first internal layer, the second internal layer, stratum and bottom, arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110222135.9A CN102324684B (en) | 2011-08-04 | 2011-08-04 | Small optical fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110222135.9A CN102324684B (en) | 2011-08-04 | 2011-08-04 | Small optical fiber amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102324684A CN102324684A (en) | 2012-01-18 |
| CN102324684B true CN102324684B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110222135.9A Active CN102324684B (en) | 2011-08-04 | 2011-08-04 | Small optical fiber amplifier |
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| CN (1) | CN102324684B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259159B (en) * | 2013-04-26 | 2016-05-04 | 中国科学院光电研究院 | Ray machine separate type two-chamber excimer laser complete machine frame system |
| CN106329298A (en) * | 2016-10-25 | 2017-01-11 | 无锡市德科立光电子技术有限公司 | Array optical fiber amplifier |
| CN109921269A (en) * | 2019-03-05 | 2019-06-21 | 深圳市杰普特光电股份有限公司 | Laser |
| CN110518444A (en) * | 2019-08-26 | 2019-11-29 | 上海禾赛光电科技有限公司 | Laser radar and its optical fiber laser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308487A (en) * | 2000-12-20 | 2001-08-15 | 周宝星 | Wiring technique for multiplayer printed circuit board |
| CN2598020Y (en) * | 2001-04-04 | 2004-01-07 | 无锡市中兴光电子技术有限公司 | Optical fibre amplifier |
| CN202231298U (en) * | 2011-08-04 | 2012-05-23 | 无锡市中兴光电子技术有限公司 | Miniature fiber amplifier |
-
2011
- 2011-08-04 CN CN201110222135.9A patent/CN102324684B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308487A (en) * | 2000-12-20 | 2001-08-15 | 周宝星 | Wiring technique for multiplayer printed circuit board |
| CN2598020Y (en) * | 2001-04-04 | 2004-01-07 | 无锡市中兴光电子技术有限公司 | Optical fibre amplifier |
| CN202231298U (en) * | 2011-08-04 | 2012-05-23 | 无锡市中兴光电子技术有限公司 | Miniature fiber amplifier |
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| Publication number | Publication date |
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| CN102324684A (en) | 2012-01-18 |
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Address after: 214028 Wuxi New District Science and Technology Industrial Park, Jiangsu, No. 93 -C block Patentee after: WUXI TACLINK OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: 214028 science and Technology Industrial Park, Wuxi New District, Jiangsu, 93-C Patentee before: Wuxi Zhongxing Optoelectronics Technology Co., Ltd. |
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Address after: 214028 -C plot 93, science and Technology Industrial Park, Wuxi New District, Jiangsu Patentee after: Wuxi dekeli Optoelectronic Technology Co.,Ltd. Address before: 214028 -C plot 93, science and Technology Industrial Park, Wuxi New District, Jiangsu Patentee before: WUXI TACLINK OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |