UWB-over-Fiber transmission system using a dual-output Mach-Zehnder modulator  

作　　者：赵颖 郑小平 张汉一 周炳琨 

机构地区：[1]State Key Laboratory on Integrated Optics,Tsinghua National Laboratory for Information Science and Technology,Department of Electronic Engineering,Tsinghua University

出　　处：《Chinese Optics Letters》2010年第5期454-456,共3页中国光学快报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China(No.60736003);the National"863"Project of China(Nos.2009AA01Z222 and 2007AA01Z256);the National"973"Project of China (No.2006CB302805);the Project iCHIP financed by the Italian Ministry of Foreign Affairs.

摘　　要：A novel scheme for ultra-wideband（UWB） monocycle pulse generation is proposed based on a dual-output push-pull Mach-Zehnder modulator（MZM）.The MZM is driven by a non-return-to-zero（NRZ） data sequence and biased at the nonlinear point to generate edge-triggered pulses.To combine the complementary pulses forming a monocycle UWB pulse,two schemes are used to implement incoherent summation structure. A proof-of-concept experiment of UWB-over-fiber down-link system is set up.Further,by using digital signal processing（DSP） to calculate the bit error rate（BER）,the transmission performance of two system configurations is studied.A novel scheme for ultra-wideband（UWB） monocycle pulse generation is proposed based on a dual-output push-pull Mach-Zehnder modulator（MZM）.The MZM is driven by a non-return-to-zero（NRZ） data sequence and biased at the nonlinear point to generate edge-triggered pulses.To combine the complementary pulses forming a monocycle UWB pulse,two schemes are used to implement incoherent summation structure. A proof-of-concept experiment of UWB-over-fiber down-link system is set up.Further,by using digital signal processing（DSP） to calculate the bit error rate（BER）,the transmission performance of two system configurations is studied.

关 键 词：Bit error rate Light modulators Optical communication Signal processing 

分 类 号：TN925[电子电信—通信与信息系统]