Reduction of optical beat interference in SCM/WDMA networks using pseudorandom phase modulation
Reduction of optical beat interference in SCM/WDMA networks using pseudorandom phase modulation
复制标题
使用伪随机相位调制减少 SCM/WDMA 网络中的光拍干扰
DOI：
10.1109/50.337501
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发表时间：
1994
影响因子：
4.7
通讯作者：
M. Kavehrad
中科院分区：
文献类型：
--
作者：
M. Banat;M. Kavehrad
提出了一种降低副载波复用(SCM)波分多址(WDMA)网络中光拍频干扰(OBI)的新方法。这个想法是故意在每个光通道上传输的电场中引入独立的随机偏振波动。随机极化导致扩展的OBI频谱，因此，在接收滤波器输出的参考用户处的OBI功率较小。利用电光相位调制技术在光场耦合到光纤之前引入偏振随机性，对一个双用户系统进行了模拟。仿真结果表明，使用合适的伪随机信号可以显著降低OBI功率谱密度。>；
A new approach is suggested to reduce the optical beat interference (OBI) in subcarrier multiplexed (SCM) wavelength-division multiple access (WDMA) networks. The idea is to deliberately introduce independent random polarization fluctuations in the electric fields transmitted on each optical channel. Random polarization results in an expanded OBI spectrum, and hence, less OBI power at the reference user receiving filter output. Electro-optic phase modulation is used to introduce polarization randomness in the fields before they are coupled into the fibers, A two-user system was simulated. Simulation results show the drastic reduction in OBI power spectral density using appropriate PN signals. >