A math model that can describe the effect of stimulated Raman scattering (SRS) on pilot-tone detection technique is proposed. Through numerical simulation, it is shown that the effect of SRS could produce ghost-tones. The power of ghost-tones was larger for the channels separated further from the real-tone. The power ratio between real-tone and ghost-tones increases linearly with the increase of transmission length when propagation distance longer than 300 km.
© 2005 Chinese Optics Letters
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
Zhiguo Gao, Minghua Chen, Hongwei Chen, and Shizhong Xie, "The effect of SRS on pilot-tone detection technique in DWDM system," Chin. Opt. Lett. 2, 192-195 (2004)