CN106340795A - Erbium doped fiber amplifier - Google Patents
Erbium doped fiber amplifier Download PDFInfo
- Publication number
- CN106340795A CN106340795A CN201610937472.9A CN201610937472A CN106340795A CN 106340795 A CN106340795 A CN 106340795A CN 201610937472 A CN201610937472 A CN 201610937472A CN 106340795 A CN106340795 A CN 106340795A
- Authority
- CN
- China
- Prior art keywords
- doped fiber
- erbium
- fiber amplifier
- pump laser
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06716—Fibre compositions or doping with active elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to an erbium doped fiber amplifier comprising a first coupler, an input optical isolator, a first wavelength division multiplexer, a first erbium doped fiber, a second wavelength division multiplexer, a second erbium doped fiber, an output optical isolator, a second coupler and a second output photo-detector; and a first output photo-detector, a controller, a multimode pump laser, a splitter, and a mode converter. According to the invention, the output of the multi-mode pump laser is converted into single-mode light, and the power of the multi-mode pump laser is large. Cooperated with the high efficiency mode converter, the output power of the erbium-doped fiber amplifier can be greatly improved, and the purpose of using a multi-mode pump laser to amplify a single-mode signal can be realized. In addition, since the volume of the unit-power of the multi-mode pump laser is much smaller than that of a conventional single-mode pump laser and the driving circuit is simple, the structure design of an erbium-doped fiber amplifier can be effectively reduced. Further, through the use of the radiation effect of the erbium-doped fiber amplifier and the use of two sections of erbium-doped fibers, the effect of flat gain of the amplifier can be achieved.
Description
Technical field
The present invention relates to optical communication technology field, particularly to a kind of erbium-doped fiber amplifier.
Background technology
Optical device is divided into active device and passive device, and optical active component is to need external energy to drive in optical communication system
Work can convert the electrical signal to optical signal or the opto-electronic device converting optical signals into the signal of telecommunication, be optical transmission system
Heart.In recent years, fiber amplifier becomes the rising star of optical active component, and be most widely used is erbium-doped fiber amplifier.
Erbium-doped fiber amplifier can the decay that causes in long range propagation and partial wave of effective compensation optical signal, greatly promoted light
The development of fiber communication system.But existing erbium-doped fiber amplifier yet suffers from problems with: using mode pump laser device
Power level is limited, expensive；Under the conditions of space communication, optical device through raying, the performance of erbium-doped fiber amplifier and
Parameter can occur significant change, and optical property can decline.
Content of the invention
The technical problem to be solved is to provide a kind of erbium-doped fiber amplifier, solves to adopt mode pump laser
Device power level is limited, expensive；Under the conditions of space communication, optical device is through raying, the performance of erbium-doped fiber amplifier
With parameter, significant change can occur, the problem that optical property can decline.
The technical scheme is that a kind of erbium-doped fiber amplifier, including being sequentially connected
The first bonder, input optoisolator, the first wavelength division multiplexer, the first Er-doped fiber, the second wavelength division multiplexer, the second er-doped
Optical fiber, output optoisolator, the second bonder and the second output photo-detector；And first being connected with described first bonder
Output photo-detector；The controller being connected with the described first output photo-detector and described second output photo-detector；With described
Multimode pump laser and shunt that controller connects；And connect the mould of described multimode pump laser and described shunt
Formula changer；Described shunt is also connected with described first wavelength division multiplexer and the second wavelength division multiplexer.
Further: described multimode pump laser is also associated with optical sender and temperature control circuit, described optical sender and temperature
Control circuit is all connected with described controller.
Further: also include the radiating element for being radiated to described second Er-doped fiber, described radiating element with
Described controller connects.
Further: the length of the first Er-doped fiber and the second Er-doped fiber is identical.
Further: described first bonder and the second bonder are wavelength division multiplexer.
Further: described first output photo-detector and the second output photo-detector are photodiode.
Further: described controller is stm32 type arm processor.
The invention has the beneficial effects as follows: the output of multimode pump laser is converted to single-mode optics through mode converter, many
Mould pump laser power is big, coordinates efficient mode converter, the output of erbium-doped fiber amplifier can be greatly improved, real
Multimode pump laser is now utilized to amplify the purpose of single mode signal, the volume of the unit power of another multimode pump laser is much smaller than
Conventional single mode pump laser, and drive circuit is simple, can effectively simplify the structure design of erbium-doped fiber amplifier；Another using mixing
The radiation effect of doped fiber amplifier, reaches the flat effect of amplifier gain using two sections of Er-doped fibers.
Brief description
Fig. 1 is erbium-doped fiber amplifier structural representation of the present invention；
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, and
Non- for limiting the scope of the present invention.
As shown in figure 1, a kind of erbium-doped fiber amplifier, including the first bonder 01 being sequentially connected, input optoisolator
02nd, the first wavelength division multiplexer 04, the first Er-doped fiber 05, the second wavelength division multiplexer 06, the second Er-doped fiber 07, output are optically isolated
Device 08, the second bonder 09 and the second output photo-detector 10；And the first output light being connected with described first bonder 01
Detector 03；The controller 17 being connected with the described first output photo-detector 03 and described second output photo-detector 10；With institute
State multimode pump laser 11 and the shunt 13 of controller 17 connection；And connect described multimode pump laser 11 and described
The mode converter 12 of shunt 13；Described shunt 13 also with described first wavelength division multiplexer 04 and the second wavelength division multiplexer 06
Connect.The light splitting ratio of described shunt 13 is adjusted by controller 17；With multimode pump laser 11 pumping simultaneously
Two independent optical amplification systems, take full advantage of the power of multimode pump laser 11, decrease the volume of half, and subtract
Lack the cost of a pump laser.First output photo-detector 03, second output photo-detector 10 and controller 17 can be protected
Card whole system is operated in the range of default Output optical power and Output optical power.
As shown in figure 1, described multimode pump laser 11 is also associated with optical sender 15 and temperature control circuit 14, described light is sent out
Penetrate machine 15 and temperature control circuit 14 is all connected with described controller 17.Described optical sender 15, temperature control circuit 14 and controller 17 can
Ensure that multimode pump laser 11 works all the time in normal temperature environment；Described erbium-doped fiber amplifier is also included for right
The radiating element 16 that described second Er-doped fiber 07 is radiated, described radiating element 16 is connected with described controller 17.
First Er-doped fiber 05 is identical with the length of the second Er-doped fiber 07.
Described first bonder 01 and the second bonder 09 are wavelength division multiplexer, are by input optical signal and pump light source
The Passive Optical Components that the light wave of output mixes.
Described first output photo-detector 03 and the second output photo-detector 10 are photodiode, for optical signal
Switch to the signal of telecommunication, and the signal of telecommunication is passed to power controller, can preferably form detection control.
Described controller 17 is stm32 type arm processor, and described controller 17 is also associated with power supply.
The invention has the beneficial effects as follows: the output of multimode pump laser 11 is converted to single mode through mode converter 12
Light, multimode pump laser 11 power is big, coordinates efficient mode converter 12, erbium-doped fiber amplifier defeated can be greatly improved
Go out power, realize amplifying the purpose of single mode signal, the specific work of another multimode pump laser 11 using multimode pump laser 11
The volume of rate is much smaller than conventional single mode pump laser, and drive circuit is simple, can effectively simplify the knot of erbium-doped fiber amplifier
Structure designs；Separately utilize the radiation effect of erbium-doped fiber amplifier, reach the flat effect of amplifier gain using two sections of Er-doped fibers
Really.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of erbium-doped fiber amplifier it is characterised in that: include be sequentially connected the first bonder (01), input optoisolator
(02), the first wavelength division multiplexer (04), the first Er-doped fiber (05), the second wavelength division multiplexer (06), the second Er-doped fiber (07),
Output optoisolator (08), the second bonder (09) and the second output photo-detector (10)；And with described first bonder
(01) the first output photo-detector (03) connecting；With the described first output photo-detector (03) and described second output optical detection
The controller (17) that device (10) connects；The multimode pump laser (11) being connected with described controller (17) and shunt (13)；
And connect the mode converter (12) of described multimode pump laser (11) and described shunt (13)；Described shunt (13)
Also it is connected with described first wavelength division multiplexer (04) and the second wavelength division multiplexer (06).
2. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: described multimode pump laser (11) is also
Be connected with optical sender (15) and temperature control circuit (14), described optical sender (15) and temperature control circuit (14) all with described controller
(17) connect.
3. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: also include for described second er-doped
The radiating element (16) that optical fiber (07) is radiated, described radiating element (16) is connected with described controller (17).
4. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: the first Er-doped fiber (05) and second is mixed
The length of erbium optical fiber (07) is identical.
5. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: described first bonder (01) and second
Bonder (09) is wavelength division multiplexer.
6. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: described first output photo-detector (03)
It is photodiode with the second output photo-detector (10).
7. according to claim 1 a kind of erbium-doped fiber amplifier it is characterised in that: described controller (17) be stm32 type
Arm processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937472.9A CN106340795A (en) | 2016-11-01 | 2016-11-01 | Erbium doped fiber amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610937472.9A CN106340795A (en) | 2016-11-01 | 2016-11-01 | Erbium doped fiber amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106340795A true CN106340795A (en) | 2017-01-18 |
Family
ID=57840935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610937472.9A Pending CN106340795A (en) | 2016-11-01 | 2016-11-01 | Erbium doped fiber amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106340795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402030A (en) * | 2017-08-31 | 2017-11-28 | 贵州电网有限责任公司 | A kind of distributed optical fiber sensing system and monitoring method based on Er-doped fiber |
| CN107453194A (en) * | 2017-09-18 | 2017-12-08 | 珠海光恒科技有限公司 | A kind of 1064 pumped great-power narrow linewidth C band erbium-doped fiber amplifiers |
-
2016
- 2016-11-01 CN CN201610937472.9A patent/CN106340795A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402030A (en) * | 2017-08-31 | 2017-11-28 | 贵州电网有限责任公司 | A kind of distributed optical fiber sensing system and monitoring method based on Er-doped fiber |
| CN107453194A (en) * | 2017-09-18 | 2017-12-08 | 珠海光恒科技有限公司 | A kind of 1064 pumped great-power narrow linewidth C band erbium-doped fiber amplifiers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170118 |