基于偏振调制的新型非归零码—归零码转换器  

A Novel NRZ-RZ Format Converter Based on Polarizer Modulator

作　　者：段中航[1] 陈新桥[1] 陈翠竹[1] 王瑞东[1] 张震[1] 

机构地区：[1]中国传媒大学信息工程学院,北京100024

出　　处：《光纤与电缆及其应用技术》2014年第1期29-32,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：设计了一种基于偏振调制(PolM)实现非归零码(NRZ)信号到归零码(RZ)信号转换的新型码型转换器,并采用光通信模拟软件对其进行了仿真验证。所设计的转换器,首先采用PolM,对输入的NRZ信号进行偏振调制,然后采用射频时钟信号,抑制信号的旁瓣,实现NRZ到RZ的转换。该码型转换器具有RZ信号占空比可控,经码型转换器后各信号波长相同,时间抖动小,转换效率高,成本低优点,可望在高速光通信网络中得到广泛应用。A novel non-return-to-zero （NRZ） to return-to-zero （RZ） format converter based on polarizer modulator is proposed and demonstrated by optical simulation software. This converter first adopts a polarizer modulator （PolM） to polarization modulate the input NRZ signal, then a RF clock signal is used to restrain the side-lobes, thus to achieve NRZ-RZ conversion. The proposed converter features convenient to adjust the duty cycle of RZ signal, the same wavelength of the signals before and after the converter, very short time-jitter, high conversion efficiency, low cost, it is expected to have an extensive use in high-speed optical communications network.

关 键 词：码型转换器 偏振调制器 非归零码 归零码 

分 类 号：TN929.11[电子电信—通信与信息系统]