Title :
Transient effects and gain-control method in low-noise dispersion-compensating hybrid fiber amplifier
Author :
Chang, Sun Hyok ; Kim, Seung Kwan ; Chung, Hee Sang ; Chu, Moo-Jung
Author_Institution :
Opt. Commun. Dept., Electron. & Telecommun. Res. Inst., Daejon, South Korea
fDate :
7/1/2003 12:00:00 AM
Abstract :
Transient effects in low-noise dispersion-compensating hybrid fiber amplifier (DC-HFA) are presented to show the combined dynamics of erbium-doped fiber amplifier and fiber Raman amplifier. Transient features in surviving signal channel are analyzed with numerical simulation in each stage of DC-HFA. A gain-control method that utilizes the transit time of dispersion-compensating fiber is suggested and it has the advantages of enough time for the gain-control electronics and lower noise figure in surviving channels.
Keywords :
Raman lasers; compensation; erbium; laser noise; optical fibre amplifiers; optical fibre dispersion; telecommunication channels; telecommunication network reliability; transients; erbium-doped fiber amplifier; fiber Raman amplifier; gain-control electronics; gain-control method; low-noise dispersion-compensating hybrid fiber amplifier; noise figure; numerical simulation; surviving channels; transient effects; Diode lasers; Erbium-doped fiber amplifier; Laser excitation; Low-noise amplifiers; Noise figure; Optical fiber amplifiers; Optical fiber dispersion; Power amplifiers; Power generation; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.813434
