Signal-to-noise ratio of spectrum-sliced incoherent light sources including optical modulation effects

Author

Lee, Jae-Seung

Author_Institution

Dept. of Electr. Eng., Kwangwoon Univ., Seoul, South Korea

Volume

14

Issue

10

fYear

1996

fDate

10/1/1996 12:00:00 AM

Firstpage

2197

Lastpage

2201

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.541207

Filename

541207