Title :
Suppression of transient phenomena in hybrid Raman/EDF amplifier
Author :
Chang, Sun Hyok ; Chung, Hee Sang ; Lee, Hyun Jae ; Kim, Kwangjoon
Author_Institution :
Broadband Convergence Network Res. Div., Electron. & Telecommun. Res. Inst., Daejeon, South Korea
fDate :
5/1/2005 12:00:00 AM
Abstract :
Transient phenomena of hybrid Raman/erbium-doped fiber amplifier (EDFA) upon optical channel add-drop are investigated. The transient responses of surviving channels are resulted from the combined dynamics of Raman amplifier and EDFA. It is shown that the suggested method employing fast gain control of EDFA only can effectively suppress the transient variation of output power. The transient-suppressing hybrid Raman/EDFA is proven to be enough for wavelength-division-multiplexing networks including reconfigurable optical add-drop multiplexer and/or transparent optical cross-connect, if the optical switching speed is carefully chosen.
Keywords :
Raman lasers; erbium; optical communication equipment; optical fibre amplifiers; optical fibre networks; optical switches; telecommunication channels; wavelength division multiplexing; EDFA; erbium-doped fiber amplifier; hybrid Raman-EDF amplifier; optical channel add-drop multiplexer; optical switching; transparent optical cross-connect; wavelength-division-multiplexing networks; Erbium-doped fiber amplifier; Fiber nonlinear optics; Gain control; Nonlinear optics; Optical amplifiers; Optical fiber networks; Optical pumping; Optical saturation; Optical scattering; Stimulated emission; Optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.845714
