Title :
A novel compensating light injection configuration for gain-clamped EDFA´s
Author :
Yanhong Xiao ; Xiaoming Liu ; Liu, D. ; Jiangde Peng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
7/1/2000 12:00:00 AM
Abstract :
A novel compensating light injection configuration for gain-clamped erbium-doped fiber amplifier (EDFA´s) is proposed. The compensating light is backward injected from the end of the first stage of the amplifier and then reflected by a grating at the amplifier input end. Very wide input dynamic range (0.5 μW-500 μW) with less than 1 mW of compensating light and low noise penalty (<0.5 dB) is demonstrated.
Keywords :
diffraction gratings; erbium; laser beams; laser noise; light reflection; optical fibre amplifiers; 0.5 dB; 0.5 to 500 muW; 1 mW; Er-doped fiber amplifier; amplifier; backward injection; compensating light; compensating light injection configuration; gain-clamped EDFA; gain-clamped amplifier; grating; input dynamic range; input end; low noise penalty; reflected light; Automatic control; Clamps; Dynamic range; Erbium-doped fiber amplifier; Gratings; Isolators; Laser excitation; Optical amplifiers; Optical control; Optical coupling;
Journal_Title :
Photonics Technology Letters, IEEE
