Title :
An output power stabilized erbium-doped fiber amplifier with automatic gain control
Author :
Takahashi, Nobuaki ; Hirono, Takafumi ; Akashi, Haruaki ; Takahashi, Sumio ; Sasaki, Tai
Author_Institution :
Dept. of Appl. Phys., Nat. Defense Acad., Kanagawa, Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
Based on the cross-saturation between two different-wavelength optical signals in an erbium-doped fiber amplifier (EDFA), we have developed an output power stabilized EDFA system with automatic gain control. The developed system shows 18.5-dB dynamic range of the output power limitation with the ability to set the output power level arbitrarily. When a temporally varying optical signal is input, the system works as a fluctuation remover for the input signal modulated at low frequency up to 1 kHz and does not have any deteriorative effect on high-frequency modulated optical signals. The degree of modulation in the fluctuated optical signal can be reduced down to as low as 0.003
Keywords :
automatic gain control; erbium; feedback amplifiers; fibre lasers; laser beams; laser feedback; optical fibre communication; optical modulation; optical saturation; optical transmitters; optical variables control; physical instrumentation control; 1 kHz; EDFA system; Er-doped fiber amplifier; automatic gain control; cross-saturation; degree of modulation; fluctuated optical signal; fluctuation remover; high-frequency modulated optical signals; input signal; low frequency modulation; optical signals; output power level; output power limitation; output power stabilized fiber amplifier; temporally varying optical signal; Erbium-doped fiber amplifier; Gain control; Optical distortion; Optical feedback; Optical modulation; Optical saturation; Optical transmitters; Power amplifiers; Power generation; Stimulated emission;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.649533
