CN207475562U - The erbium-doped fiber amplifier of flat output in optical wavelength bandwidth - Google Patents
The erbium-doped fiber amplifier of flat output in optical wavelength bandwidth Download PDFInfo
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- CN207475562U CN207475562U CN201721573474.0U CN201721573474U CN207475562U CN 207475562 U CN207475562 U CN 207475562U CN 201721573474 U CN201721573474 U CN 201721573474U CN 207475562 U CN207475562 U CN 207475562U
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- control module
- doped fiber
- optical
- optical signal
- erbium
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Abstract
The utility model discloses a kind of erbium-doped fiber amplifiers of flat output in optical wavelength bandwidth.The utility model includes center processor, optical signal received branch unit, input terminal optoisolator, wavelength division multiplexer, high-selenium corn Er-doped fiber, output terminal optoisolator, optical signal output splitter, grating, pump laser and the Power Monitoring Unit being connected respectively with the center processor, control module group, the first optical detector, the second optical detector, panel controller, Display panel screen, RJ45 interfaces, remote control module, RS232 interface and state alarm device.The utility model is suitable for optical signal transmission field.
Description
Technical field
The utility model is related to a kind of erbium-doped fiber amplifiers of flat output in optical wavelength bandwidth.
Background technology
With the fast development of modern Networks of Fiber Communications technology, the rapid decline of optical fiber cost price, light entering and copper back is
For intelligent acess (FTTx) is done step-by-step, provide high speed bandwidth access information transmission network to the user quite has global fixed network operator
Sharp condition.Long away from optical fiber transmission network, erbium-doped fiber amplifier is main core equipment, is even more important.Traditional mixes
Doped fiber amplifier, traditional erbium-doped fiber amplifier, no-raster can not screen specific wavelength, and there are defeated in optical wavelength range
Go out the problem of flatness is poor.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide one kind to sieve by grating
Select the light of specific wavelength by improving the erbium-doped fiber amplifier of the flatness in optical wavelength range.
Technical solution is used by the utility model：The utility model includes center processor, optical signal receives branch
Device, input terminal optoisolator, wavelength division multiplexer, high-selenium corn Er-doped fiber, output terminal optoisolator, optical signal output splitter,
Grating, pump laser and the Power Monitoring Unit being connected respectively with the center processor, control module group, the first light
Detector, the second optical detector, panel controller, Display panel screen, RJ45 interfaces, remote control module, RS232 interface and
State alarm device, the optical signal received branch unit, the input terminal optoisolator, the wavelength division multiplexer, the high-selenium corn
Er-doped fiber, the output terminal optoisolator, optical signal output splitter and the grating are sequentially connected and connect, the light
Signal received branch unit is connected with first optical detector, the optical signal output splitter and second optical detector
It is connected, the pump laser connection is arranged between the wavelength division multiplexer and the control module group.
The control module group includes power control module, current control module and temperature control modules, the power
Control module, the current control module and the temperature control modules are connected respectively with the pump laser, described
The power control module, the current control module and the temperature control modules are connected respectively with the center processor
It connects.
The pump laser is low noise 980nm pump lasers.
The length of the high-selenium corn Er-doped fiber is 8M.
The beneficial effects of the utility model are：Relative to traditional erbium-doped fiber amplifier, the utility model is believed in light
Number output terminal increases grating so that the utility model can realize that the light of screening specific wavelength passes through, and improve optical wavelength range
Interior flatness, so as to fulfill low, broadband, stable output power is distorted, while cause flat output in optical wavelength range.
Description of the drawings
Fig. 1 is each member connection structure schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model includes center processor 1, optical signal received branch unit 2, input terminal optoisolator
3rd, wavelength division multiplexer 4, high-selenium corn Er-doped fiber 5, output terminal optoisolator 6, optical signal output splitter 20, grating 21, pumping
Laser 7 and the Power Monitoring Unit 15 being connected respectively with the center processor 1, control module group, the first optical detection
Device 8, the second optical detector 22, panel controller 9, Display panel screen 10, RJ45 interfaces 11, remote control module 12, RS232 connect
Mouth 13 and state alarm device 14, the optical signal received branch unit 2, the input terminal optoisolator 3, the wavelength division multiplexer
4th, the high-selenium corn Er-doped fiber 5, the output terminal optoisolator 6, optical signal output splitter 20 and the grating
21 are sequentially connected and connect, and the optical signal received branch unit 2 is connected with first optical detector 8, the optical signal output point
Road device 20 is connected with second optical detector 22, the pump laser 7 connection be arranged on the wavelength division multiplexer 4 and
Between the control module group.
The control module group includes power control module 16, current control module 17 and temperature control modules 18, institute
State power control module 16, the current control module 17 and the temperature control modules 18 respectively with the pump laser
7 are connected, the power control module 16, the current control module 17 and the temperature control modules 18 respectively with
The center processor 1 is connected.
In this embodiment, the pump laser 7 is low noise 980nm pump lasers.The high-selenium corn is mixed
The length of erbium optical fiber 5 is 8M.
In the present embodiment, 1550nm light inputs the input terminal of the optical signal received branch unit 2, and the optical signal, which receives, to be divided
The output terminal of road device 2 is connect with the 1550nm ends of the wavelength division multiplexer 4,980nm ends and the pump of the wavelength division multiplexer 4
The output terminal connection of Pu laser 7, the output terminal of the wavelength division multiplexer 4 is respectively through the high-selenium corn Er-doped fiber with 8M long
5 connections.For the optical signal of input by the high-selenium corn Er-doped fiber 5, the erbium ion in the high-selenium corn Er-doped fiber 5 absorbs institute
The photon signal of the excitation of pump laser 7 is stated, makes ground state electron to upper state, and the energy of release is added to the photon of flashlight
On, so as to fulfill the amplification of flashlight.The optical signal of amplification passes through the output terminal optoisolator 6 and the optical signal successively
Output splitter 20 is exported to the grating 21, the finally flat output after the screening of the grating 21.
The utility model corresponding running parameter and can be intuitive clear on the Display panel screen 10 at work
It has been shown that, and can be set according to the SBS values of 1550nm transferring optical senders, it can be connected by the remote control module 12
Remote network management operating system or the panel controller 9 adjust the Output optical power of the utility model, reach into fine light
Design value needed for power.
In work, the luminous powers of input and output, pumping are swashed using its work in every parameters unit of the center processor 1
Bias current, backlight power, temperature, the refrigeration electric current of light device carry out tracking and testing and the result of test are fed back and debugged, from
And the optical signal of optimal stabilization is exported, and can ensure that Output optical power may be up to 23dBm through output port.
The utility model is suitable for optical signal transmission field.
Claims (4)
1. a kind of erbium-doped fiber amplifier of flat output in optical wavelength bandwidth, it is characterised in that：It includes center processor
（1）, optical signal received branch unit（2）, input terminal optoisolator（3）, wavelength division multiplexer（4）, high-selenium corn Er-doped fiber（5）, it is defeated
Outlet optoisolator（6）, optical signal output splitter（20）, grating（21）, pump laser（7）And respectively with the center
Processor（1）The Power Monitoring Unit being connected（15）, control module group, the first optical detector（8）, the second optical detector
（22）, panel controller（9）, Display panel screen（10）, RJ45 interfaces（11）, remote control module（12）, RS232 interface（13）
And state alarm device（14）, the optical signal received branch unit（2）, the input terminal optoisolator（3）, the wavelength-division multiplex
Device（4）, the high-selenium corn Er-doped fiber（5）, the output terminal optoisolator（6）, optical signal output splitter（20）With
And the grating（21）It is sequentially connected and connects, the optical signal received branch unit（2）With first optical detector（8）It is connected,
The optical signal exports splitter（20）With second optical detector（22）It is connected, the pump laser（7）Connection is set
It puts in the wavelength division multiplexer（4）And between the control module group.
2. the erbium-doped fiber amplifier of flat output in optical wavelength bandwidth according to claim 1, it is characterised in that：It is described
Control module group includes power control module（16）, current control module（17）And temperature control modules（18）, the power
Control module（16）, the current control module（17）And the temperature control modules（18）Respectively with the pump laser
（7）It is connected, the power control module（16）, the current control module（17）And the temperature control modules（18）Point
Not with the center processor（1）It is connected.
3. the erbium-doped fiber amplifier of flat output in optical wavelength bandwidth according to claim 2, it is characterised in that：It is described
Pump laser（7）For low noise 980nm pump lasers.
4. the erbium-doped fiber amplifier of flat output in optical wavelength bandwidth according to claim 1, it is characterised in that：It is described
High-selenium corn Er-doped fiber（5）Length be 8M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573474.0U CN207475562U (en) | 2017-11-22 | 2017-11-22 | The erbium-doped fiber amplifier of flat output in optical wavelength bandwidth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573474.0U CN207475562U (en) | 2017-11-22 | 2017-11-22 | The erbium-doped fiber amplifier of flat output in optical wavelength bandwidth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207475562U true CN207475562U (en) | 2018-06-08 |
Family
ID=62259246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721573474.0U Active CN207475562U (en) | 2017-11-22 | 2017-11-22 | The erbium-doped fiber amplifier of flat output in optical wavelength bandwidth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207475562U (en) |
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2017
- 2017-11-22 CN CN201721573474.0U patent/CN207475562U/en active Active
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