Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection

Chen-Hao Gou; Jun-Hui Zhang; Yang Luo; Zi-Ye Gao; Qi-Bo Chen; Xuan Li; Li Fan

doi:10.1117/12.2643916

27 December 2022 Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection

Chen-Hao Gou, Jun-Hui Zhang, Yang Luo, Zi-Ye Gao, Qi-Bo Chen, Xuan Li, Li Fan

Author Affiliations +

Proceedings Volume 12311, Semiconductor Lasers and Applications XII; 123110H (2022) https://doi.org/10.1117/12.2643916
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

We have experimentally investigated the generation of tunable and broadband Optical Frequency Comb (OFC) based on a gain-switching vertical-cavity surface emitting laser driven by a square wave signal under optical injection. During the experiment, the influences of modulation frequency f_m and injection light wavelength λ_i on OFC performances are analyzed systematically. The experimental results indicate that under suitable operation parameters, an OFC with bandwidth of 77.0 GHz within 10 dB power variation and single sideband phase noise of -115.7 dBc/Hz @ 10 kHz can be generated. Also, during the modulation frequency range of 1.5 GHz - 2.8 GHz, broadband OFCs with bandwidth exceeding 70.0 GHz can be obtained based on the square-current modulated VCSEL under optical injection.

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Chen-Hao Gou, Jun-Hui Zhang, Yang Luo, Zi-Ye Gao, Qi-Bo Chen, Xuan Li, and Li Fan "Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection", Proc. SPIE 12311, Semiconductor Lasers and Applications XII, 123110H (27 December 2022); https://doi.org/10.1117/12.2643916

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