CN201499171U - Erbium-doped fiber amplifier - Google Patents
Erbium-doped fiber amplifier Download PDFInfo
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- CN201499171U CN201499171U CN200920307027XU CN200920307027U CN201499171U CN 201499171 U CN201499171 U CN 201499171U CN 200920307027X U CN200920307027X U CN 200920307027XU CN 200920307027 U CN200920307027 U CN 200920307027U CN 201499171 U CN201499171 U CN 201499171U
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- fiber amplifier
- doped fiber
- erbium
- pump laser
- laser
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Abstract
The utility model relates to a fiber amplifier, in particular to an erbium-doped fiber amplifier. The fiber amplifier comprises a pump laser. Laser and input light emitted by the pump laser are coupled by a wavelength division multiplexing (WDM) coupler, and enter the erbium-doped fiber, and then are amplified and outputted; the fiber amplifier also comprises a microprocessor control unit which is internally provided with a central processing unit; the central processing unit is connected with a data collecting and sending module, a memory, a network management interface and a temperature control and industrial control circuit respectively, wherein the data collecting and sending module collects the power of the input light and the output light; the network man agement interface is connected with a remote network management module; and the temperature control and industrial control circuit is connected with the pump laser. In the utility model, the network state can be monitored continuously in real time, all parameters of the fiber amplifier can be inquired in turn to-and-fro, the automation on monitoring of the network equipment is realized, the laser can be opened and closed remotely by the network management interface, the fiber amplifier is convenient for remote monitoring and maintenance, and the technical problem that the existing fiber amplifier in the prior art can not be monitored remotely is solved.
Description
Technical field
The utility model relates to a kind of fiber amplifier, relates in particular to a kind of erbium-doped fiber amplifier.
Background technology
Erbium-doped fiber amplifier (ErbiumDopedFiberAmplifier is called for short EDF) as active medium, when pump light is input among the erbium-doped fiber EDF, is in major part the Er of ground state
3+Be pumped on the excitation state, be in the Er of excitation state
3+Transfer on the metastable state rapidly again, because Er radiationlessly
3+Mean residence time on metastable state is 10ms, therefore be easy between metastable state and ground state, form population inversion, at this moment, the signal photon is by erbium-doped fiber EDF, under the effect of stimulated radiation effect, produce a large amount of and self identical photon, the signal photon is increased rapidly, just can obtain the light signal that constantly amplified at output like this.Be developed into Erbium-Doped Fiber Amplifier EDFA the end of the eighties to the beginning of the nineties from eighties of last century, and begin to be applied to greatly to have promoted Fibre Optical Communication Technology and developed since the optical fiber telecommunications system of 1.55 μ m frequency ranges to full optical transmission direction.Erbium-doped fiber amplifier EDFA is technological development and a commercialization maturity high product in the optical communication technique field at present.As Chinese patent: " erbium-doped fiber amplifier (CN201207116Y) " comprises pump laser, wavelength division multiplexer and Er-doped fiber.The output of its pump laser connects second input of wavelength division multiplexer.The first input end of wavelength division multiplexer can connect with the outer signals output.The output of wavelength division multiplexer connects the input of Er-doped fiber, and the output of Er-doped fiber can connect with the outer signals input.Present fiber amplifier can only be controlled separately in real time, and can not realize long-range management regulation.
Summary of the invention
The utility model mainly provides a kind of monitoring state of network that can be continuous, real-time, the parameters of reciprocal poll fiber amplifier, realized the monitoring automation of the network equipment, by network management interface can remote opening, close laser, be convenient to the fiber amplifier of remote monitoring and maintenance; Solve the technical problem that the existing in prior technology fiber amplifier can not remote monitoring.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of erbium-doped fiber amplifier, comprise pump laser, enter Er-doped fiber after the pump laser emitted laser is coupled with the coupler of importing light process wavelength division multiplexing and amplify output, also comprise microprocessor control unit, comprise central processing unit in the microprocessor unit, central processing unit is connected with data acquisition sending module, memory, network management interface and temperature control industry control circuit respectively; Data acquisition sending module is wherein gathered the input and output luminous power, and network management interface links to each other with the webmaster module of far-end, and temperature control industry control circuit is connected with described pump laser.The parameters of the light of the central processing unit collection and treatment input and output fiber amplifier in the microprocessor unit, monitoring state of network that can be continuous, real-time has been guaranteed stable optical output power, and has effectively prolonged the working life of laser.Link to each other with the webmaster module of far-end by network management interface simultaneously, the webmaster module by far-end realizes the control to equipment, and by the opening and closing laser that network management interface can be long-range, is convenient to remote monitoring and maintenance.Temperature control industry control circuit in the microprocessor unit can well be adjusted the operating state of pump laser, and distortion is low, broadband, Output optical power height.
As preferably, be mixed into the coupler of wavelength division multiplexing after the light input through the laser of input optical isolator and pump laser transmission; Export after exporting optical isolator through the output light behind the Er-doped fiber.The coupling of process coupler will import light and pump laser emitted laser coupling back input Er-doped fiber is realized amplification, and output light filters veiling glare through optical isolator, makes distortion little, the luminous power height of output.
As preferably, described pump laser is two in parallel accesses in the Er-doped fibers.Pump laser can be provided with the quantity of selection pump laser for a plurality of according to the parameter of fiber amplifier.
As preferably, described input light and output light are conveyed into microprocessor control unit through coupler and photo-detector with the power data of input and output light.Photo-detector is gathered the corresponding data of input and output light, is transferred to microprocessor control unit, and microprocessor control unit is put in order data, realizes accurately monitoring.
Therefore, a kind of erbium-doped fiber amplifier of the present utility model has following advantage: utilize microprocessor control unit, the various operating states of in real time accurate monitor optical power output and laser have been guaranteed stable optical output power, and have effectively been prolonged the working life of laser; Simultaneously, microprocessor control unit is connected swap data by network management interface with the webmaster module of far-end, can carry out long-range direct management to equipment, monitoring state of network that can be continuous, real-time, the parameters of reciprocal poll image intensifer, realize the monitoring automation of the network equipment, but by the network management interface remote opening, close laser, be convenient to remote monitoring and maintenance.
Description of drawings:
Fig. 1 is the theory diagram of a kind of erbium-doped fiber amplifier of the present utility model.
Fig. 2 is the interior theory diagram of microprocessor control unit in Fig. 1.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As illustrated in fig. 1 and 2, a kind of erbium-doped fiber amplifier comprises two pump lasers 1, and pump laser 1 is provided with biasing circuit 2 and temperature control circuit 3.The bandwidth of input light is 1550nm, and to be 980nm enter Er-doped fiber 13 through the coupler 5 of wavelength division multiplexing to the radiative bandwidth of input light by isolator 4 and pump laser 1 amplifies, and the output light after amplifying through energy is through optical isolator 6 outputs.In fiber amplifier, comprise a microprocessor control unit 7, microprocessor control unit 7 comprises central processor CPU, the network management interface 12 of mainboard data acquisition sending module 8, temperature control industry control circuit 9, memory cell ROM and RAM, system register MEC and RJ45.Wherein mainboard data acquisition sending module 8 is gathered the relevant parameter of input light after through couplers 14 and photo-detector 15, also gathers the relevant parameter through the output light behind coupler 14 and the photo-detector 15 simultaneously.Temperature control industry control circuit 9 links to each other with temperature control circuit with biasing circuit on the pump laser 1.Microprocessor control unit links to each other with the webmaster module of far-end by network management interface.
Claims (4)
1. erbium-doped fiber amplifier, comprise pump laser, enter Er-doped fiber after the pump laser emitted laser is coupled with the coupler of importing light process wavelength division multiplexing and amplify output, it is characterized in that: also comprise microprocessor control unit, comprise central processing unit in the microprocessor unit, central processing unit is connected with data acquisition sending module, memory, network management interface and temperature control industry control circuit respectively; Data acquisition sending module is wherein gathered the input and output luminous power, and network management interface links to each other with the webmaster module of far-end, and temperature control industry control circuit is connected with described pump laser.
2. a kind of erbium-doped fiber amplifier according to claim 1 is characterized in that: the coupler that is mixed into wavelength division multiplexing after the light input through the laser of input optical isolator and pump laser transmission; Export after exporting optical isolator through the output light behind the Er-doped fiber.
3. a kind of erbium-doped fiber amplifier according to claim 1 and 2 is characterized in that: described pump laser is two in parallel accesses in the Er-doped fiber.
4. a kind of erbium-doped fiber amplifier according to claim 1 and 2 is characterized in that: described input light and output light process coupler and photo-detector are conveyed into microprocessor control unit with the power data of input and output light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920307027XU CN201499171U (en) | 2009-07-29 | 2009-07-29 | Erbium-doped fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920307027XU CN201499171U (en) | 2009-07-29 | 2009-07-29 | Erbium-doped fiber amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201499171U true CN201499171U (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920307027XU Expired - Lifetime CN201499171U (en) | 2009-07-29 | 2009-07-29 | Erbium-doped fiber amplifier |
Country Status (1)
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| CN (1) | CN201499171U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122992A (en) * | 2010-12-29 | 2011-07-13 | 上海华魏光纤传感技术有限公司 | Low-noise optical fiber amplifier |
| CN105450297A (en) * | 2015-12-30 | 2016-03-30 | 桂林创研科技有限公司 | Intelligent optical power collection system |
| CN105914569A (en) * | 2016-06-24 | 2016-08-31 | 桂林创研科技有限公司 | Novel erbium-doped optical fiber amplifier |
| CN106229800A (en) * | 2016-08-15 | 2016-12-14 | 桂林创研科技有限公司 | Novel erbium-doped fiber amplifier |
-
2009
- 2009-07-29 CN CN200920307027XU patent/CN201499171U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122992A (en) * | 2010-12-29 | 2011-07-13 | 上海华魏光纤传感技术有限公司 | Low-noise optical fiber amplifier |
| CN105450297A (en) * | 2015-12-30 | 2016-03-30 | 桂林创研科技有限公司 | Intelligent optical power collection system |
| CN105914569A (en) * | 2016-06-24 | 2016-08-31 | 桂林创研科技有限公司 | Novel erbium-doped optical fiber amplifier |
| CN106229800A (en) * | 2016-08-15 | 2016-12-14 | 桂林创研科技有限公司 | Novel erbium-doped fiber amplifier |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang province 311241 Xiaoshan Guali Industrial Development Zone Patentee after: Hangzhou Prevail Optoelectronic Equipment Co., Ltd. Address before: Hangzhou City, Zhejiang province 311241 Xiaoshan Guali Industrial Development Zone Patentee before: Hangzhou Prevail Optoelectronic Equipment Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100602 |
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| CX01 | Expiry of patent term |