640GBIT/S ALL-OPTICAL DEMULTIPLEXING USING NONLINEAR POLARIZATION ROTAT IN SEMICONDUCTOR OPTICAL AMPLIFIER
Taking into account ultra-fast carrier dynamics, we have numerically analyzed 640Gbit/s to 80Gbit/s demultiplexing scheme based on nonlinear polarization rotation (NPR) in a single semiconductor optical amplifier (SOA) in detail. Simulated results show that there is a trade-off in the width and amplitude of switching window induced by clock pulse in terms of the input clock pulse energy. The rise time of switching window does not strongly depend on clock pulse energy, whereas the FWHM and fall time of switching window are increasing with the increase of the clock pulse energy. We have also obtained demultiplexing results from 640Gbit/s to 80Gbit/s based on NPR with a clear open eye diagram. From the simulated analyses, it is clear that for the higher output channel suppression ratio, the input clock signal with TE mode is required.
All-optical demultiplezing Nonlinear polarization rotation Semiconductor optical amplifier Ultra-fast carrier dynamics
Feng Chuanfen Lin Jintong
China Mobile Group Design Institute CO., LTD. Shandong Branch,85#, Jianshe Road, Jinan District, Sha Key Laboratory of Optical Communication and Lightwave Technologies of MOE,Beijing University of Post
国际会议
北京
英文
370-374
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）