Title :
Limitations imposed by Rayleigh backscattering in closely interleaved, bidirectional WDM transmission systems
Author :
Sumida, Masatoyo ; Kubo, Tsutomu ; Imai, Takamasa
Author_Institution :
NTT Network Service Syst. Labs., NTT Corp., Yokosuka, Japan
Abstract :
By deriving signal-backscattering and backscattering-backscattering beat noises, this letter quantifies the performance impairment due to backscattering produced by closely spaced counterpropagating signals. Experiments using 10-Gb/s data signals verify the theoretical analysis. The interference between signal and backscattering induces significant impairment when their channel separation is less than the sum of the data rate and signal spectrum width. The spectral efficiency limitation imposed by backscattering is clarified for closely spaced, interleaved bidirectional transmission systems.
Keywords :
Rayleigh scattering; backscatter; channel spacing; optical fibre communication; optical noise; wavelength division multiplexing; 10 Gbit/s; Rayleigh backscattering limitations; backscattering-backscattering beat noises; channel separation; closely interleaved bidirectional WDM transmission systems; closely spaced counterpropagating signals; data rate; performance impairment; signal spectrum width; signal-backscattering beat noises; spectral efficiency limitation; Backscatter; Frequency; Light sources; Optical modulation; Optical noise; Optical receivers; Performance analysis; Photodetectors; Signal analysis; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.805745
