CN205283548U - Raman fiber amplifier - Google Patents
Raman fiber amplifier Download PDFInfo
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- CN205283548U CN205283548U CN201521132083.6U CN201521132083U CN205283548U CN 205283548 U CN205283548 U CN 205283548U CN 201521132083 U CN201521132083 U CN 201521132083U CN 205283548 U CN205283548 U CN 205283548U
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- photoelectric detector
- light source
- controller
- opticcoupler
- optical
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- 239000000835 fiber Substances 0.000 title claims abstract description 18
- 238000001069 Raman spectroscopy Methods 0.000 title claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims abstract description 38
- 239000006185 dispersion Substances 0.000 claims abstract description 12
- 239000013307 optical fiber Substances 0.000 claims description 17
- 238000005086 pumping Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Lasers (AREA)
Abstract
The utility model provides a raman fiber amplifier belongs to the optic fibre field, including an optical coupler, preceding to pump light source, a photoelectric detector, controller, optic fibre, the 2nd optical coupler, back to pump light source, the 2nd photoelectric detector, dispersion compensator and optical filter, the input light signal gets into optic fibre through an optical coupler, a photoelectric detector connects the input light signal, optical detector's output termination controller, the controller meets an optical coupler through preceding to the pump light source, fibre output is through the 2nd optical coupler, dispersion compensator and optical filter to output light signal, the 2nd photoelectric detector's input termination optic fibre, the 2nd photoelectric detector's output termination controller, the controller is connected with the 2nd optical coupler to the pump light source after through, the controller is to pump light source and the light wave power of back to the pump light source before according to a photoelectric detector and the 2nd photoelectric detector's optical detection signal control, the problem of low and the intelligent control of current raman fiber amplifier output is solved.
Description
Technical field
The utility model relates to a kind of fiber amplifier, particularly relates to a kind of Raman Fiber Amplifier.
Background technology
In fiber optic communication systems, two the important transport propertys affecting maximum repeater span are the loss on optical fiber circuit and dispersion; In order to ensure the reliability of transmission quality on long-distance optical cable backbone, it is necessary to fiber amplifier is set up in online suitably position. Fiber amplifier conventional at present has erbium-doped fiber amplifier and Raman distributed amplifier.
Along with the fast growth of some new data transmission services, the message capacity of ferry optical transmission system is proposed requirements at the higher level, and expansion capacity mainly relies on the single-channel speed of raising and increase passage number to arrive in wavelength-division multiplex system, so also just wish that the operation wavelength of system constantly expands. Now, the fiber amplifier of the demand of the opticfiber communication cable of current high-speed high capacity can be met very well, have Raman Fiber Amplifier only; But existing Raman Fiber Amplifier is not fine in the power control of pumping source, could not according to the power gain of the demand intelligent control pumping source of output rating.
Practical novel content
The utility model provides a kind of Raman Fiber Amplifier, solves the low problem with intelligent control of existing Raman Fiber Amplifier output rating.
The utility model solves the problem by the following technical programs:
A kind of Raman Fiber Amplifier, comprises the first opticcoupler, forward pumping light source, the first photoelectric detector, controller, optical fiber, the 2nd opticcoupler, backward pump light source, the 2nd photoelectric detector, dispersion compensator and optical filter;
Input optical signal enters optical fiber through the first opticcoupler; First photoelectric detector connects input optical signal; The output termination controller of photodetector; Controller is premenstrual connects the first opticcoupler to pump light source; Fiber-optic output through the 2nd opticcoupler, dispersion compensator and optical filter to output optical signal; The input terminated optical fiber of the 2nd photoelectric detector; The output termination controller of the 2nd photoelectric detector; Controller is connected with the 2nd opticcoupler through backward pump light source.
Preferably, described optical fiber be have 40THZ Raman frequency shift peak mix phosphorescence fibre.
Preferably, described control unit is made up of microprocessor.
Preferably, described microprocessor is the multiple digital processing chip combined of FPGA, micro-chip, DSP, ARM or more.
Preferably, described first opticcoupler and the 2nd opticcoupler are wavelength division multiplexer.
Advantage of the present utility model and effect be:
The utility model provides a kind of Raman Fiber Amplifier, controller is used to control the light wave power of forward pumping light source and backward pump light source respectively according to the light detecting signal of the first photoelectric detector and the 2nd photoelectric detector, making can according to exporting required power as required at light signal output end, it is possible to form the effect that Intelligent optical fiber amplifies very well; Solve the low problem with intelligent control of existing Raman Fiber Amplifier output rating.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail.
A kind of Raman Fiber Amplifier, as shown in Figure 1, comprises the first opticcoupler, forward pumping light source, the first photoelectric detector, controller, optical fiber, the 2nd opticcoupler, backward pump light source, the 2nd photoelectric detector, dispersion compensator and optical filter;
Input optical signal enters optical fiber through the first opticcoupler; First photoelectric detector connects input optical signal; The output termination controller of photodetector; Controller is premenstrual connects the first opticcoupler to pump light source; Fiber-optic output through the 2nd opticcoupler, dispersion compensator and optical filter to output optical signal; The input terminated optical fiber of the 2nd photoelectric detector; The output termination controller of the 2nd photoelectric detector; Controller is connected with the 2nd opticcoupler through backward pump light source.
Input optical signal enters optical fiber through the first opticcoupler, wherein, first photoelectric detector can detect the data such as the loss of input optical signal, controller receives the detection data that the first photoelectric detector imports into, light wave power according to detection Data Control forward pumping light source, after pumping light wave and input optical signal enter optical fiber, realize amplifying through gain media, it is possible to realize the front to amplification of fiber-optic signal very well.
The 2nd opticcoupler is entered through the front optical signal to amplifying, and through dispersion compensator and optical filter to outputing signal; The front optical signal to amplifying was met in 2nd photoelectric detector detection, detection signal was passed to controller, by controller according to the light wave power of detection Data Control backward pump light source, it is achieved backward optical signal amplification.
Described optical fiber be have 40THz Raman frequency shift peak mix phosphorescence fibre, under the effect of forward pumping light source and backward pump light source, particle reversion distribution has occurred in a fiber, has created stimulated radiation, thus optical signal is amplified.
Control unit is made up of microprocessor, is mainly the digital processing chip combined that FPGA, micro-chip, DSP, ARM or more are multiple; There is control accuracy height, control simple effect, make the power control of Raman Fiber Amplifier more accurate.
First opticcoupler and the 2nd opticcoupler are wavelength division multiplexer, can well the light wave of input optical signal and forward pumping light source, backward pump light source be coupled, it is achieved being coupled between light with light, are that power magnification provides basis.
The effect of optical filter is the noise of filtering image intensifer, reduces noise to the impact of amplifier, it is to increase the signal to noise ratio of opticfiber communication cable.
Dispersion compensator is mainly used in compensated optical signal and weakens part due to dispersion, it is to increase the quality of Signal transmissions.
The utility model provides a kind of Raman Fiber Amplifier, controller is used to control the light wave power of forward pumping light source and backward pump light source respectively according to the light detecting signal of the first photoelectric detector and the 2nd photoelectric detector, making can according to exporting required power as required at light signal output end, it is possible to form the effect that Intelligent optical fiber amplifies very well; Solve the low problem with intelligent control of existing Raman Fiber Amplifier output rating.
Below the better embodiment that the utility model is created has been carried out concrete explanation, but the utility model is not limited to embodiment, those of ordinary skill in the art also can make all equivalent modification or replacement under the prerequisite not running counter to the utility model creative spirit, and these equivalent modification or replacement are all included in the scope of the application.
Claims (5)
1. a Raman Fiber Amplifier, it is characterised in that: comprise the first opticcoupler, forward pumping light source, the first photoelectric detector, controller, optical fiber, the 2nd opticcoupler, backward pump light source, the 2nd photoelectric detector, dispersion compensator and optical filter;
Input optical signal enters optical fiber through the first opticcoupler; First photoelectric detector connects input optical signal; The output termination controller of photodetector; Controller is premenstrual connects the first opticcoupler to pump light source; Fiber-optic output through the 2nd opticcoupler, dispersion compensator and optical filter to output optical signal; The input terminated optical fiber of the 2nd photoelectric detector; The output termination controller of the 2nd photoelectric detector; Controller is connected with the 2nd opticcoupler through backward pump light source.
2. a kind of Raman Fiber Amplifier according to claim 1, it is characterised in that: described optical fiber be have 40THZ Raman frequency shift peak mix phosphorescence fibre.
3. a kind of Raman Fiber Amplifier according to claim 1, it is characterised in that: described control unit is made up of microprocessor.
4. a kind of Raman Fiber Amplifier according to claim 3, it is characterised in that: described microprocessor is the multiple digital processing chip combined of FPGA, micro-chip, DSP, ARM or more.
5. a kind of Raman Fiber Amplifier according to claim 1, it is characterised in that: described first opticcoupler and the 2nd opticcoupler are wavelength division multiplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132083.6U CN205283548U (en) | 2015-12-30 | 2015-12-30 | Raman fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521132083.6U CN205283548U (en) | 2015-12-30 | 2015-12-30 | Raman fiber amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205283548U true CN205283548U (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521132083.6U Active CN205283548U (en) | 2015-12-30 | 2015-12-30 | Raman fiber amplifier |
Country Status (1)
| Country | Link |
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| CN (1) | CN205283548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450308A (en) * | 2015-12-30 | 2016-03-30 | 桂林创研科技有限公司 | Raman optical fiber amplifier |
| CN105914569A (en) * | 2016-06-24 | 2016-08-31 | 桂林创研科技有限公司 | Novel erbium-doped optical fiber amplifier |
-
2015
- 2015-12-30 CN CN201521132083.6U patent/CN205283548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450308A (en) * | 2015-12-30 | 2016-03-30 | 桂林创研科技有限公司 | Raman optical fiber amplifier |
| CN105914569A (en) * | 2016-06-24 | 2016-08-31 | 桂林创研科技有限公司 | Novel erbium-doped optical fiber amplifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A raman fiber amplifier Effective date of registration: 20221021 Granted publication date: 20160601 Pledgee: China Construction Bank Corporation Guilin Branch Pledgor: GUILIN TRYIN TECHNOLOGY Co.,Ltd. Registration number: Y2022450000179 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231011 Granted publication date: 20160601 Pledgee: China Construction Bank Corporation Guilin Branch Pledgor: GUILIN TRYIN TECHNOLOGY Co.,Ltd. Registration number: Y2022450000179 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |