| YUAN Jin,LIU Qisong,MEI Ying,XU Xiuxiu,WANG Yujie,BA Xinran.Research on wavelength conversion of triangular pulses with variable symmetry based on SPM effect[J].Optoelectronics Letters,2023,(8):449-454 |
| Research on wavelength conversion of triangular pulses with variable symmetry based on SPM effect |
| Author Name | Affiliation | | YUAN Jin | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China | | LIU Qisong | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China | | MEI Ying | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China | | XU Xiuxiu | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China | | WANG Yujie | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China | | BA Xinran | State Key Laboratory of Media Convergence and Communication, Communication University of China, Beijing 100044, China |
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| Abstract: |
| 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. |
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