Fiber Raman amplifier uses the Raman effect in quartz fiber, using a pump laser with a wavelength of 14xxnm to provide Raman gain to optical signals, and achieves high gain and low noise amplification of optical signals in the C or L band, which can effectively compensate for the attenuation of optical signals in long-distance optical fiber transmission. It can be used in long-distance optical transmission systems, distributed optical fiber sensing, and intensive wavelength division multiplexing optical transmission systems.
Performance Specifications
|
Optical Parameter
|
Unit
|
Typical Values
|
Remark
|
|
Signal Wavelength
|
nm
|
1528~1565
|
1570~1650
|
customizable
|
|
Raman gain
|
dB
|
10/20
|
*Note 2
|
|
Gain Flatness
|
dB
|
<2
|
|
|
Pump wavelength
|
nm
|
1425~1457
|
1470~1550
|
|
|
Pump Power
|
mW
|
300/500/1000/1400
|
customizable
|
|
Pump light polarization DOP
|
-
|
5% (Type), 10%(Max)
|
|
|
Polarization dependent gain PDG
|
dB
|
<0.2
|
|
|
Polarization Mode Dispersion PMD
|
ps
|
<0.5
|
|
|
Input/output Isolation
|
dB
|
>35
|
|
|
Fiber Type
|
-
|
SMF-28
|
1.0m length
|
|
Optical Connector
|
-
|
FC/APC or Fiber collimator
|
FC/APC only for low power test
|
|
Control Mode
|
-
|
Automatic pump power control (APPC)
|
|
*Note 2 :This amplifier is only Raman amplifier pumping and needs to cooperate with the long-distance quartz fiber in the user's system to generate sufficient signal gain.
|
Electrical and environmental parameters
|
Desktop
|
Module
|
|
Control Mode
|
Button
|
RS232
|
|
Communication Interface
|
* Optional (DB9 optional host computer software)
|
DB 25 Female
|
|
Power Supply
|
100~240V AC, <45W
|
5V DC, <30W
|
|
Dimensions
|
260(W)×320(D)×120(H)mm
|
125(W)×150(D)×30(H)mm
|
|
Operation Temperature Range
|
-5~+55°C
|
|
Operation Humidity Range
|
0~70%
|
Package Dimension
Ordering Information
P/N:①-②-③-④-⑤-⑥
When you inquire, please provide the correct P/N number according to our ordering information, and attach the appropriate description would be better.
|
①
|
②
|
③
|
④
|
|
FRA
|
Signal wavelength (nm)
|
Pump power (mW)
|
Package Type
|
|
|
1550
1650
|
300/500/1000/1400
|
M: Module
B: Desktop
|
Ordering Information for Custom Parts:
If you need to customize other specifications, please provide detailed description for your requirement.
Note 1:
- ACC mode-automatic current control: the EDFA pump working current is set by the user and automatically locked by the EDFA to achieve a constant pump current. When the input optical power fluctuates, the output power will also fluctuate accordingly, which is applicable to all EDFA models.
- APC mode-automatic power control: the user sets the signal light output power of the EDFA, PD automatically monitors and feeds back the output power, EDFA control and self-adaptive adjustment of the pump to achieve the stability of the output signal. The advantage of the APC mode is that when the input optical power fluctuates, the EDFA will reduce the output power fluctuation as much as possible, and it is suitable for power and line EDFAs.
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