Research on wavelength conversion of triangular pulses with variable symmetry based on SPM effect  

作　　者：YUAN Jin LIU Qisong MEI Ying XU Xiuxiu WANG Yujie BA Xinran 

机构地区：[1]State Key Laboratory of Media Convergence and Communication,Communication University of China,Beijing 100044,China

出　　处：《Optoelectronics Letters》2023年第8期449-454,共6页光电子快报(英文版)

基　　金：supported by the National Natural Science Foundation of China (No.62105306);the Fundamental Natural Funds for the Central Universities (No.CUC230B021)。

摘　　要：The generation of periodic triangular waveform with variable symmetrical coefficient based on a dual-parallel Mach-Zehnder modulator(DP-MZM) is demonstrated in this work.By properly setting the modulation index and bias points of DP-MZM,desired symmetric/asymmetric triangular waveforms can be generated.Then applying the generated triangular waveform into an amplitude modulator(AM),a single-period signal can be extracted to explore the optical wavelength conversion induced by the self-phase modulation(SPM) effect in a high nonlinear fiber(HNLF).Wavelength shifts of triangular waveforms with different coefficients(10%,20%,30%,40% and 50%) are calculated.In addition,the influence of key parameters of HNLF on the wavelength conversion is analyzed in detail.

关 键 词：MODULATOR TRIANGULAR EFFECT 

分 类 号：TN929.11[电子电信—通信与信息系统] TN761[电子电信—信息与通信工程]