Title :
Multi-channel power-equalizing reflective erbium-doped fiber amplifier
Author :
Nilsson, J. ; Kim, J.M. ; Lee, Y.W. ; Hwang, S.T. ; Yeon, S.Y. ; Kim, S.J.
Author_Institution :
Opt. Commun. R&D Group, Samsung Electron., Suwon, South Korea
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
Power-equalizing erbium-doped fiber amplifiers (EDFAs) counteract detrimental spread of channel-powers in wavelength-division multiplexed transmission. Unfortunately, because of the homogeneously broadened gain-spectra of Er-doped fibers (EDFs) at room temperature, power-equalization is difficult in EDFAs. However, if different channels travel different paths through the amplifier, the gain becomes effectively inhomogeneously broadened thus facilitating equalization. We propose and numerically analyze a new reflective EDFA in which different channels travel partly different paths by virtue of different points of reflection. This can then equalize channel powers without any complex adjustable filters or control circuits.
Keywords :
equalisers; erbium; laser beams; multiplexing equipment; optical fibre amplifiers; optical fibre communication; optical transmitters; wavelength division multiplexing; 298 K; Er-doped fibers; amplifier; channel powers; channel-powers; control circuits; equalization; filters; gain; homogeneously broadened gain-spectra; inhomogeneously broadened gain; multi-channel power-equalizing reflective Er-doped fiber amplifier; power-equalization; power-equalizing fiber amplifiers; reflection; room temperature; wavelength-division multiplexed transmission; Absorption; Attenuators; Business communication; Erbium-doped fiber amplifier; Filters; Gain; Optical fiber communication; Reflection; Research and development; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.817765
