A novel NOLM structure with nonreciprocal phase shift bias for power fluctuation reduction of pulse trains  

作　　者：郭力为 冯雪 刘越 刘小明 

机构地区：[1]Department of Electronic Engineering Tsinghua University

出　　处：《Chinese Optics Letters》2006年第8期449-452,共4页中国光学快报（英文版）

摘　　要：A novel nonlinear optical loop mirror （NOLM） with a nonreciprocal phase shift bias （NPSB）, called power equalization NOLM （PE-NOLM）, is proposed for reducing the power fluctuation of pulse trains. NPSB provides part of the nonreciprocal phase difference so that the required input power is reduced, and nonsymmetrical coupling ratio of coupler can adjust the transmission curve to improve the equalization range. It has been shown theoretically that compared with earlier PE-NOLM, about 1.6 dB of equalization power reduction and about 2.2 dB of equalization demonstrated that the output power fluctuation peak power range is 4.5 dBm （15.6-20.1 dBm）.A novel nonlinear optical loop mirror （NOLM） with a nonreciprocal phase shift bias （NPSB）, called power equalization NOLM （PE-NOLM）, is proposed for reducing the power fluctuation of pulse trains. NPSB provides part of the nonreciprocal phase difference so that the required input power is reduced, and nonsymmetrical coupling ratio of coupler can adjust the transmission curve to improve the equalization range. It has been shown theoretically that compared with earlier PE-NOLM, about 1.6 dB of equalization power reduction and about 2.2 dB of equalization demonstrated that the output power fluctuation peak power range is 4.5 dBm （15.6-20.1 dBm）.

关 键 词：COUPLINGS Phase shift Power transmission 

分 类 号：TN78[电子电信—电路与系统]