Investigation of Nonlinear Optical Loop Mirror based Optical Thresholding for High Speed OCDM System
The nonlinear optical loop mirror (NOLM) and the nonlinear amplifying loop mirror (NALM) based optical thresholding in the high speed OCDM system are analyzed, the input pulse peak power of the NOLM is optimized considering the thresholding decision function, pulse shaping and side-lobe suppressing of the NOLM based on high nonlinear fiber (HNLF) are numerically simulated, and theoretical investigation is compared with experimental result. The results show that the interference noise in the 40 Gbit/s OCDM system could be suppressed effectively by the optical thresholding techniques based on the NOLM and the NALM. We show that the NOLM and the NALM can act as a nonlinear processing element capable of reducing both the pedestal associated with conventional matched filtering and the width of the associated code recognition pulse.
Optical code division multiplexing (OCDM) Optical thresholding Nonlinear optical loop mirror(NOLM) Nonlinear amplifying loop mirror(NALM)
Xiaogang Chen Dexiu Huang
College of Science,China Three Gorges University,Yichang,Hubei,443002 China. Wuhan National Laboratory for Optoelectronics (WNLO),Huazhong University of Science and Technology,W
国际会议
2008亚太光通信会议(Asia-Pacific Optical Communications 2008)
杭州
英文
2008-10-26（万方平台首次上网日期，不代表论文的发表时间）