摘要
A method used to introduce an arbitrary equivalent-phase-shift(EPS)into an asymmetric sampled Bragg grating(SBG)is reported.Under the same structural parameters except for the sampling pattern,the asymmetric SBG offers better performance than that of a normal SBG structure for keeping single-longitudinal-mode(SLM)operation.This is because the proposed sampling pattern can suppress the 0th-order light resonance due to the mismatch between the two different grating sections along the whole SBG.This method can be used to design and fabricate semiconductor lasers and multiwavelength laser arrays(MLAs)with the required EPS at high yield and low cost.
作者
周亚亭
施跃春
李思敏
刘盛春
陈向飞
ZHOU Ya-Ting;SHI Yue-Chun;LI Si-Min;LIU Sheng-Chun;CHEN Xiang-Fei(Microwave-Photonics Technology Laboratory,Nanjing National Laboratory of Microstructures,School of Engineering and Applied Sciences,Nanjing University,Nanjing 210093;Changzhou Institute of Technology,Changzhou 213002)
基金
the National Natural Science Foundation of China under Grant No 60877043
the Natural Science Foundation of Changzhou Institute of Technology under Grant No YN1008
the New Century Excellent Talents in University.
