Title :
Effects of optical filter drifts in wavelength division multiplexing system with cascaded optical amplifiers
Author :
Chai, Y. ; Choa, F.S.
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA
Abstract :
We report the analysis and results on an optically amplified WDM system with a cascade of optical amplifier-filter pairs. System performance is described by receiver electrical SNR (SNR/sub e/). The WDM system consists of m equally spaced optical channels and n stages of amplifier-filter pairs. In an ideal situation, each filter frequency is perfectly aligned with the laser frequency. The EDFA is assumed to operate with a constant total output power model. Two cases are considered. One is the "worst case" where all filters have a drift of /spl Delta/f, the other is the "best" case where only one filter suffers a drift of /spl Delta/f. For both cases, the system analyzed has eight 2.5 Gb/s.
Keywords :
fibre lasers; optical communication equipment; optical crosstalk; optical fibre communication; optical filters; optical noise; wavelength division multiplexing; 2.5 Gbit/s; EDFA; Er doped fiber amplifier; cascaded optical amplifiers; constant total output power model; filter frequency; laser frequency; optical amplifier-filter pairs; optical filter drifts; optically amplified WDM system; receiver electrical SNR; wavelength division multiplexing system; Frequency; Laser modes; Optical amplifiers; Optical filters; Optical receivers; Quantum cascade lasers; Semiconductor optical amplifiers; Stimulated emission; System performance; Wavelength division multiplexing;
Conference_Titel :
Vertical-Cavity Lasers, Technologies for a Global Information Infrastructure, WDM Components Technology, Advanced Semiconductor Lasers and Applications, Gallium Nitride Materials, Processing, and Devi
Conference_Location :
Montreal, Que., Canada
Print_ISBN :
0-7803-3891-X
DOI :
10.1109/LEOSST.1997.619134
