Performance limitations imposed by stimulated Raman scattering in optical WDM SCM video distribution systems

Recent FTTH Systems and Services of NTT in Japan

“…Therefore, the crosstalk should have been caused by some fiber nonlinearity; however, we could not find which nonlinearity was the cause. After the publication of our paper, several papers reported that the crosstalk was caused by stimulated Raman scattering (SRS) [8][9][10]. After years later, F. Coppinger, et al reported that Raman crosstalk caused noise in 1542 nm wavelength AM-SCM-TV signal, when wavelength division multiplexed 1482nm wavelength GE-PON signal power was larger than 3 dBm [11].…”

Optical System Performance Measurements

“…It is well known that the nonlinear Raman crosstalk between these two channels can be described by the coupled-wave equations [39] @P j ðz; tÞ @z þ 1 v j @P j ðz; tÞ @t ¼ g s P j ðz; tÞ À a  à P j ðz; tÞ ð 5:6:25Þ @P k ðz; tÞ @z þ 1 v k @P k ðz; tÞ @t ¼ Àg s P k ðz; tÞ À a ½ P k ðz; tÞ ð 5:6:26Þ It is well known that the nonlinear Raman crosstalk between these two channels can be described by the coupled-wave equations [39] @P j ðz; tÞ @z þ 1 v j @P j ðz; tÞ @t ¼ g s P j ðz; tÞ À a  à P j ðz; tÞ ð 5:6:25Þ @P k ðz; tÞ @z þ 1 v k @P k ðz; tÞ @t ¼ Àg s P k ðz; tÞ À a ½ P k ðz; tÞ ð 5:6:26Þ…”

Crosstalk in WDM FM-SSM Optical Receiver utilizing Coherent Carrier Addition

“…In order to exploit this superwide bandwidth in optical communication, wavelength division multiplexing (WDM) [1][2][3][4][5][6][7][8][9][10] is used. In WDM technique, several optical carriers, each carrying information signals, are multiplexed in the optical domain and transmitted through the optical fiber.…”