Photonic generation of triangular waveform with tunable symmetry based on channelized frequency synthesis
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Published:2023-08-14
Issue:24
Volume:62
Page:6366
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ISSN:1559-128X
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Container-title:Applied Optics
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language:en
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Short-container-title:Appl. Opt.
Author:
Yan Miaoxia,
Li Jing,
Wang Xuehui,
Pei Li,
Ning Tigang,
Zheng Jingjing,
Wang JianshuaiORCID
Abstract
A symmetry tunable triangular waveform photonic generator based on channelized frequency synthesis is proposed and studied. The generator adopts a multichannel system architecture and harmonic amplitude control algorithm to physically isolate each subchannel. In a single subchannel, quadrature phase shift keying modulation and coherent dual-wavelength balanced detection are used to realize optical upconversion and suppress mixing interference in the process of frequency conversion. Therefore, the model has the characteristics of a high-order Fourier series fitting tunable function waveform output. The analysis results show that the Fourier series harmonic coefficients can be adjusted flexibly by the multivariable joint regulation algorithm. The relationship between the variables is analyzed and discussed. The feasibility of the scheme is verified by optical simulation; when the rms error (RMSE) ≤0.03, a 20%–80% tunable symmetry triangular waveform can be obtained.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Publisher
Optica Publishing Group
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering