CN101750681A - 1550/1550 nm single wavelength single-fiber bidirectional component - Google Patents
1550/1550 nm single wavelength single-fiber bidirectional component Download PDFInfo
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- CN101750681A CN101750681A CN200810183603A CN200810183603A CN101750681A CN 101750681 A CN101750681 A CN 101750681A CN 200810183603 A CN200810183603 A CN 200810183603A CN 200810183603 A CN200810183603 A CN 200810183603A CN 101750681 A CN101750681 A CN 101750681A
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Abstract
The invention discloses a 1550/1550 nm single wavelength single-fiber bidirectional component capable of transmitting data for a longer distance, comprising an emitter, a receiver, an optical filter, an isolator and a ceramic magnetic needle arranged in a metal piece. The 1550/1550 nm single wavelength single-fiber bidirectional component is characterized in that the emitter adopts a laser, the wavelength of which is 1550 nm, and the receiver adopts an optical detector, the wavelength of which is 1550 nm. The 1550/1550 nm single wavelength single-fiber bidirectional component has the advantages that since fiber in 1550 nm waveband is in a low-consumption area with the consumption of about 0.2dB/km, the data transmission distance is increased obviously and reaches more than 60 km, thereby reducing the quantity of trunking equipment used in long-distance optical communication and lowering the construction cost of optical communication networks.
Description
Technical field
The present invention relates to a kind of optical fiber data conveying device, relate in particular to a kind of single wavelength single fiber bi-directional of 1550/1550nm assembly that is used for data transmission.
Background technology
Optical-fibre communications has become one of most important mode in the global network communication at present, since the Optical Fiber Transmission data-signal have low-loss, long transmission distance, at a high speed, advantage that safe, anti-electromagnetic interference (EMI) is strong etc., in recent years, in the data transmission procedure in fields such as industrial and mining enterprises' control automatically, image data, on-site supervision, more and more wish to substitute original cable transmission data with the Optical Fiber Transmission data.The main now single wavelength single fiber bi-directional of the 1310/1550nm assembly of using carries out the transmission of data, and 1310nm is used in the emission of the single wavelength single fiber bi-directional of this 1310/1550nm assembly, receive and then use 1550nm, otherwise 1550nm is used in emission, receives then to use 1310nm.The loss of 1310nm light wave in optical fiber is 0.4dB/km, is under the situation of 155Mb/s in speed, uses 1310/1550 single fiber device transmission data distance mostly to be 40km most.The single wavelength single fiber bi-directional of this 1310/1550nm assembly transmission data distance is shorter, causes the usage quantity of trunking of long-distance optical communication too much, has increased the construction cost of optical communication network.
Summary of the invention
Technical matters to be solved by this invention is: a kind of long single wavelength single fiber bi-directional of 1550/1550nm assembly of data distance that transmits is provided.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the single wavelength single fiber bi-directional of 1550/1550nm assembly, comprise: transmitter, receiver, optical filter, isolator and be arranged on ceramic needle in the metalwork, it is characterized in that: what adopt at described transmitter is that wavelength is the laser instrument of 1550nm, and what described receiver adopted is that wavelength is the photo-detector of 1550nm.
Advantage of the present invention is: the single wavelength single fiber bi-directional of the 1550/1550nm of this structure assembly, because optical fiber is the low-loss district at the 1550nm wave band, approximately loss is 0.2dB/km, the transmission data are obviously increased apart from meeting, can reach more than the 60km, reduce the usage quantity of the trunking of long-distance optical communication, reduced the construction cost of optical communication network.
Description of drawings
Fig. 1 is the structural representation of the single wavelength single fiber bi-directional of 1550/1550nm of the present invention assembly.
Among the figure: 1, transmitter, 2, receiver, 3, optical filter, 31, filter plate, 4, isolator, 5, metalwork, 51, ceramic needle.
Embodiment
Describe specific embodiments of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the single wavelength single fiber bi-directional of 1550/1550nm assembly, comprise: transmitter 1, receiver 2, optical filter 3, isolator 4 and be arranged on ceramic needle 51 in the metalwork 5, what adopt at described transmitter 1 is that wavelength is the laser instrument of 1550nm, and what described receiver 2 adopted is that wavelength is the photo-detector of 1550nm.
The course of work of the single wavelength single fiber bi-directional of the 1550/1550nm of said structure assembly is: wavelength is the laser elder generation process isolator 4 that the laser instrument of 1550nm sends, then through after being arranged on 45 ℃ of filter plate 31 transmissions in the optical filter 3, focus on the center, top of ceramic needle 51, wavelength 31 reflections that are the 1550nm incident light through 45 ℃ of filter plates change and focus on center in the photosurface of photo-detector that wavelength is 1550nm after the directions.By same SC type optical interface output and input, so just realized that the single wavelength light of 1550nm is by same optical interface output and input then.
Claims (1)
1.1550/1550nm single wavelength single fiber bi-directional assembly, comprise: transmitter, receiver, optical filter, isolator and be arranged on ceramic needle in the metalwork, it is characterized in that: what adopt at described transmitter is that wavelength is the laser instrument of 1550nm, and what described receiver adopted is that wavelength is the photo-detector of 1550nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810183603A CN101750681A (en) | 2008-12-09 | 2008-12-09 | 1550/1550 nm single wavelength single-fiber bidirectional component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810183603A CN101750681A (en) | 2008-12-09 | 2008-12-09 | 1550/1550 nm single wavelength single-fiber bidirectional component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101750681A true CN101750681A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810183603A Pending CN101750681A (en) | 2008-12-09 | 2008-12-09 | 1550/1550 nm single wavelength single-fiber bidirectional component |
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| CN (1) | CN101750681A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183828A (en) * | 2011-06-02 | 2011-09-14 | 平湖中天合波通信科技有限公司 | A single fibre bi-directional assembly |
| CN102364364A (en) * | 2011-11-22 | 2012-02-29 | 福州百讯光电有限公司 | Single-wavelength and single-fiber bidirectional light transceiving module assembly |
| CN102508343A (en) * | 2011-11-29 | 2012-06-20 | 深圳市易飞扬通信技术有限公司 | Single-fiber bidirectional component and packaging method thereof |
| CN102809788A (en) * | 2012-08-10 | 2012-12-05 | 江苏奥雷光电有限公司 | Interface assembly of optical transceiver module |
| CN102998755A (en) * | 2012-10-16 | 2013-03-27 | 绍兴飞泰光电技术有限公司 | Coarse identical-wavelength division multiplexing bidirectional light receiving and transmitting integrated module with tail fiber type structure and single fiber |
| CN104749712A (en) * | 2013-12-25 | 2015-07-01 | 华为技术有限公司 | Single-fiber bidirectional module |
-
2008
- 2008-12-09 CN CN200810183603A patent/CN101750681A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183828A (en) * | 2011-06-02 | 2011-09-14 | 平湖中天合波通信科技有限公司 | A single fibre bi-directional assembly |
| CN102364364A (en) * | 2011-11-22 | 2012-02-29 | 福州百讯光电有限公司 | Single-wavelength and single-fiber bidirectional light transceiving module assembly |
| CN102508343A (en) * | 2011-11-29 | 2012-06-20 | 深圳市易飞扬通信技术有限公司 | Single-fiber bidirectional component and packaging method thereof |
| CN102508343B (en) * | 2011-11-29 | 2014-05-21 | 深圳市易飞扬通信技术有限公司 | Single-fiber bidirectional component and packaging method thereof |
| CN102809788A (en) * | 2012-08-10 | 2012-12-05 | 江苏奥雷光电有限公司 | Interface assembly of optical transceiver module |
| CN102998755A (en) * | 2012-10-16 | 2013-03-27 | 绍兴飞泰光电技术有限公司 | Coarse identical-wavelength division multiplexing bidirectional light receiving and transmitting integrated module with tail fiber type structure and single fiber |
| CN104749712A (en) * | 2013-12-25 | 2015-07-01 | 华为技术有限公司 | Single-fiber bidirectional module |
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Open date: 20100623 |