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1 November 2021 A simple self-oscillating optical frequency comb generator based on the monolithic integrated laser subject to the gain-switching state
Jin Li, Jilin Zheng, Tao Pu, Hua Zhou, Xin Zhang, Yunkun Li, Yukai Chen
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Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 120571I (2021) https://doi.org/10.1117/12.2604950
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China
Abstract
A simple photonic approach to generating the wideband optical frequency comb (OFC) based on the monolithic integrated semiconductor laser (MISL) subject to the gain-switching effect is proposed and experimentally demonstrated in this work. The impressive hotspots focus on the two following aspects. One is the core device, i.e., MISL, which integrates two DFB lasers onto one chip simultaneously. It is equipped with numerous physical characteristics such as low volume, power consumption, easily integration and so on at the mean time of guaranteeing the nonlinear dynamics of the semiconductor laser itself. The other advantage is the OFC generator (OFCG) is fully self-oscillating attributing to the fact that the feedback RF signal applied to modulate the laser is provided by the MISL itself. In this case, no additional microwave driver is required, leading to the system flexible and convenient. In the experiment, one discernible OFC with a bandwidth of 70.2 GHz and a comb line of 11 within 5-dB amplitude variation is obtained, suggesting this method huge effectiveness.
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Jin Li, Jilin Zheng, Tao Pu, Hua Zhou, Xin Zhang, Yunkun Li, and Yukai Chen "A simple self-oscillating optical frequency comb generator based on the monolithic integrated laser subject to the gain-switching state", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 120571I (1 November 2021); https://doi.org/10.1117/12.2604950
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KEYWORDS
Semiconductor lasers
Frequency combs
Integrated optics
Feedback signals
Oscillators
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