色散传输系统中RZ-DPSK信号非线性相位噪声与通道内四波混频的比较
Comparison of Nonlinear Phase Noise and Intrachannel Four-Wave-Mixing for RZ-DPSK Signals in Dispersive Transmission Systems
摘要:
自相位调制引起的非线性相位噪声随光纤色散的增加而减小,但通道内四波混频(IFWM)随色散的增加而增加。即使在高色散的传输系统中,差分相位引起的非线性相位噪声的标准偏差也是IFWM引起的非线性相位噪声的标准偏差的三倍左右。
英文摘要:
Self-phase modulation induced nonlinear phase noise is reduced with the increase of fiber dispersion but intrachannel four-wave-mixing (IFWM) is increased with dispersion. Both degrading DPSK signals, the standard deviation of nonlinear phase noise induced differential phase is about three times that from IFWM even in highly dispersive transmission systems.
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