A novel reconfigurable modulator implementation for generating optical eight-ary PSK/QAM signals  

作　　者：颜丙阳 杨彦甫 朱宇鹏 钟杰昌 曹剑超 吴炳雄 姚勇 

机构地区：[1]Department of Electronic and Information Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China

出　　处：《Chinese Optics Letters》2014年第A01期35-37,共3页中国光学快报（英文版）

基　　金：The Project （HIT.NSFIR.2011131） was supported by the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology, and the National Natural Science Foundation of China under grant no. 61205046, and Shenzhen Municipal Science and Technology Plan Project （contracts JCYJ20120613150130014, JC201105160592A and JC201005260185A）.

摘　　要：We propose a reconfigurable 8PSK/8QAM modulator implementation by employing two cascaded QPSK modulators with an interferometer in between. With simple control of bias voltage of the interferometer, a flexible switching between 8PSK/8QAM can be achieved. The transmission performance of the generated 8PSK/8QAM signals over different link scenarios is compared via numerical simulations. The results reveal that the proposed implementation has the capability of maximizing transmission distance in the case of dynamic optical network.We propose a reconfigurable 8PSK/8QAM modulator implementation by employing two cascaded QPSK modulators with an interferometer in between. With simple control of bias voltage of the interferometer, a flexible switching between 8PSK/8QAM can be achieved. The transmission performance of the generated 8PSK/8QAM signals over different link scenarios is compared via numerical simulations. The results reveal that the proposed implementation has the capability of maximizing transmission distance in the case of dynamic optical network.

关 键 词：QPSK调制器 QAM信号 8PSK 可重构 八进制 QAM调制器 偏置电压 数值模拟 

分 类 号：TN943.3[电子电信—信号与信息处理] TN911.7[电子电信—信息与通信工程]