Title :
Signal-to-noise ratio of spectrum-sliced incoherent light sources including optical modulation effects
Author_Institution :
Dept. of Electr. Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
10/1/1996 12:00:00 AM
Abstract :
We have derived the beat-noise-limited signal-to-noise ratio (SNR) of spectrum-sliced incoherent light sources, including optical modulation effects. SNR changes significantly in time depending on the received optical pulse shape and the receiver electrical filter. Thus, the optimum decision point at the optical receiver may be much different from the peak signal point and the sampled SNR may be different from the continuous-wave SNR. To obtain high SNR, small rise and fall times are required and the non-return-to-zero modulation format is recommended
Keywords :
light sources; optical fibre communication; optical modulation; optical noise; optical receivers; beat-noise-limited signal-to-noise ratio; continuous-wave SNR; high SNR; non-return-to-zero modulation format; optical fibre communication; optical modulation effects; optical receiver; optimum decision point; peak signal point; received optical pulse shape; receiver electrical filter; sampled SNR; signal-to-noise ratio; spectrum-sliced incoherent light sources; Fiber nonlinear optics; Light sources; Nonlinear optics; Optical feedback; Optical filters; Optical modulation; Optical noise; Optical receivers; Optical scattering; Signal to noise ratio;
Journal_Title :
Lightwave Technology, Journal of
