27 December 2022Generation of tunable and broadband optical frequency comb based on gain-switching vertical-cavity surface-emitting laser driven by square wave signal under optical injection
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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 fm and injection light wavelength λion 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.
Chen-Hao Gou,Jun-Hui Zhang,Yang Luo,Zi-Ye Gao,Qi-Bo Chen,Xuan Li, andLi 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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Chen-Hao Gou, Jun-Hui Zhang, Yang Luo, Zi-Ye Gao, Qi-Bo Chen, Xuan Li, 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