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High Reliability 33dBm YEDFA Fiber Amplifier Module


This line of high power fiber amplifier combiners features a dual stage amplification configuration, pre-amplifier and power amplifier and the use of select multi-channel splitters with extremely low IL and high reliability.

Both input and output signals are sampled and monitored with a feedback circuit. ACC (automatic current control) and APC (automatic power control) circuits are designed into the amplifier to ensure high stability and reliability of output power. Standard user-friendly RS-232 interface enables reliable connectivity with customer’s control system.


  • Low noise figure
  • Optional output configurations:
    • 33dBm * 1 port
    • 28dBm * 2 ports
    • 25dBm * 4 ports
    • 22dBm * 8 ports
    • 18dBm * 16ports etc
  • Highly reliable laser diode pumps
  • High stability and reliability based on multi-mode pumping and fiber combiner technology
  • Wide operating temperature range


  • Test and Measurement
  • Analog CATV transmission systems
  • Data & Voice optical transmission systems
  • Optical distribution systems
  • FTTx
  • Free space communication

Optical characteristics

Parameter Unit Typ. Notes
Operating wavelength nm 1543~1565 Other wavelength upon request. Refer to illustration below
Output power dBm +30, +33
Input power dBm 0 ~ +10 Lower input power is possible, discussion in details
Output power stability dB <0.4 APC mode, over 2 hours
Noise figure dB Discussion is needed
Control mode Selectable APC or ACC
Return loss dB >40
Output fiber type SMF-28 900μm Jacket
Connector type FC/APC, SC/APC Other type upon request