Title :
Theory of direct-detection lightwave receivers using optical amplifiers
Author :
Tonguz, Ozan K. ; Kazovsky, Leonid G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rutgers Univ., Piscataway, NJ, USA
fDate :
2/1/1991 12:00:00 AM
Abstract :
A simple theory is presented for analyzing the sensitivity and bit-error rate (BER) performance of direct-detection lightwave receivers using optical amplifiers. The analysis provides closed-form expressions for the BER and receiver sensitivity, and includes the impact of phase noise. Furthermore, the proposed theory predicts the optimum filter bandwidth values required for linewidths of practical interest (up to 100% of the bit rate). For the special case of zero linewidth, the average signal energy predicted by this work is 42.3 photons/b at BER=10 -9. This result is within 0.47 dB of the sensitivity predicted by more accurate techniques
Keywords :
optical communication equipment; receivers; sensitivity; average signal energy; bit-error rate; closed-form expressions; direct-detection lightwave receivers; linewidths; optical amplifiers; optimum filter bandwidth values; phase noise; receiver sensitivity; zero linewidth; Bit error rate; Closed-form solution; Optical amplifiers; Optical filters; Optical noise; Optical receivers; Optical sensors; Performance analysis; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
