基于DFB激光器腔体内XGM效应的阈值判决技术  

Threshold decision technology based on XGM effect in DFB laser cavity

作　　者：陈大雷 孟生云 董飞鸿 CHEN Dalei;MENG Shengyun;DONG Feihong(Army Armored Force Academy of PLA,Bengbu Campus,Bengbu Anhui 233000,China;Military Academy of Science,Institute of Systems Engineering,Beijing 100000,China)

机构地区：[1]陆军装甲兵学院蚌埠校区,安徽蚌埠233000 [2]军事科学院系统工程研究所,北京100000

出　　处：《光通信技术》2019年第11期49-53,共5页Optical Communication Technology

摘　　要：为消除光时分/码分多址等光数字通信系统中的多址干扰(MAI)噪声,提出了一种新型的基于分布反馈式(DFB)激光器腔内的交叉增益调制(XGM)效应全光阈值判决技术。通过将光数字脉冲信号注入DFB激光器,激光器内部出现XGM效应,使用光带通滤波器(OBPF)滤出XGM效应产生的新光谱即可消除信号中的MAI噪声,从而提高数字信号的接收性能。To eliminate multiple access interference(MAI)noise in optical time division/code division multiple access igital communication systems,a novel all-optical threshold decision technique based on cross gain modulation(XGM)effect in distributed feedback(DFB)lasers cavity is proposed.By injecting optical digital pulse signal into DFB laser,XGM effect appears inside the laser.Using optical bandpass filter(OBPF)to filter out the new spectrum produced by XGM effect can eliminate MAI noise in the signal,thus improving the reception performance of digital signal.

关 键 词：全光阈值判决 分布反馈式激光器 交叉增益调制效应 

分 类 号：TN929.11[电子电信—通信与信息系统]