P. Wan et J. Conradi, IMPACT OF DOUBLE RAYLEIGH BACKSCATTER NOISE ON DIGITAL AND ANALOG FIBER SYSTEMS, Journal of lightwave technology, 14(3), 1996, pp. 288-297
We have derived, and experimentally verified, an exact analytical expr
ession for the noise power spectral density due to double Rayleigh bac
kscattering in standard single mode fiberoptic transmission systems in
terms of the autocorrelation function of the transmitted optical elec
tric field. The analysis is used to examine the impact of double Rayle
igh backscattering on chirped amplitude modulated-subcarrier multiplex
ed (AM-SCM), and optically amplified digital intensity modulated-direc
t detection (IM-DD) laser systems, with and without optical isolators
in the link.