Gain Flattened EDFA for R&D Application, Benchtop (EDFA-GR-B)

Data Sheet

Product Overview

The Optilab EDFA-GR series is a line of Gain-Flattening Benchtop Erbium Doped Fiber Amplifiers designed for laboratory testing and research applications of a DWDM system. When a standard EDFA is used to amplify multi-channel DWDM signals, the output power level of various channels will vary according to the gain profile of the erbium fiber. The gain variation can be as great as 6 dB in magnitude. The EDFA-GR is unique in its dual-stage amplification and internal Gain Flattening Filter (GFF) to compensate the erbium fiber gain variation. This design enables the EDFA-GR to reduce the gain variation to ± 0.5dB over its full operating wavelength range, 1529 nm to 1561 nm. Depending on the input power level of each channel, an EDFA-GR is able to amplify up to 64 DWDM channels.


  • Compatible with 10 Gb/s and 40 Gb/s
  • Channel spacing of 100 GHz or 50 GHz
  • Flatten gain amplification from 1529 nm to 1561 nm
  • Amplify 8 to 64 DWDM channels
  • Output level can be varied up to +23 dBm
  • Four pump sources can be controlled individually
  • Two 980 nm pump lasers
  • Two 1480 nm pump lasers

Feature Name Description
Optical Specifications
Operating Range 1529 nm to 1561 nm
Amplifier Design Dual-stage with Internal Gain Flattening Filter
Output Power Levels +18 dBm to +24 dBm
Number of Pump Lasers 4 total, 980 nm (2) and 1480 nm (2)
Input Signal Level per Channel -7 dBm to -15 dBm, for gain flatness to ± 0.5dB *
Number of Channels Can accommodate 8 - 64
Optical Gain per Channel 13 dB to 21 dB, depending on input level *
Gain Flatness ± 0.5 dB
Noise Figure 5.0 dB typ.
Polarization Dependent Gain (PDG) 0.2 dB max.
Polarization Mode Dispersion (PMD) 0.5 ps max.
Power Stability ± 0.05 dB over 8 hours
Input/Output Isolation 30 dB min.
Optical Fiber Single Mode, SMF-28
Mechanical Specifications
Operating Temperature 0º C to +50º C
Storage Temperature -40º C to +70º C
Power Supply Requirements 80 - 240 V, 43 - 63 Hz AC
Power Consumption 80 W max.
Control Pump Laser Current Adjustment
Monitoring Pump Laser Temperature
Computer Interface SNMP (Optional)
Display Output Power Level, TEC Temperature
Alarms Temperature and Current Threshold
Optical Connectors FC/APC, SC/APC
Housing Dimensions Benchtop, 16.5” x 12.5” x 5.25”
Housing Precision Machined Aluminum, Anodized

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