Parametric processes and nonlinear dynamics of self-starting frequency combs

Nikola Opačak; Dmitry Kazakov; Lorenzo Columbo; Maximilian Beiser; Florian Pilat; Massimo Brambilla; Franco Prati; Marco Piccardo; Federico Capasso; Benedikt Schwarz

doi:10.1117/12.2651256

17 March 2023 Parametric processes and nonlinear dynamics of self-starting frequency combs

Nikola Opačak, Dmitry Kazakov, Lorenzo Columbo, Maximilian Beiser, Florian Pilat, Massimo Brambilla, Franco Prati, Marco Piccardo, Federico Capasso, Benedikt Schwarz

Author Affiliations +

Proceedings Volume PC12440, Novel In-Plane Semiconductor Lasers XXII; PC124400G (2023) https://doi.org/10.1117/12.2651256
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Quantum cascade lasers and other semiconductor laser types constitute an attractive integrated platform for spectroscopic applications, as they emit self-starting Frequency Combs (FCs), unlike traditionally-used mode-locked lasers. Here, we explain self-starting FCs due to nonlinear effects arising from the laser gain itself, with particular attention on the coupling of the amplitude and phase of light, quantified by the Linewidth Enhancement Factor (LEF). We study both cavity geometries, Fabry-Perot and ring, reporting the conditions for stable comb formation and different methods of optimizing their performance. In analogy with Kerr microresonators, ring lasers show the formation of temporal localized soliton-like structures, indicating towards an untapped potential for discovering new states of light.

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Citation Download Citation

Nikola Opačak, Dmitry Kazakov, Lorenzo Columbo, Maximilian Beiser, Florian Pilat, Massimo Brambilla, Franco Prati, Marco Piccardo, Federico Capasso, and Benedikt Schwarz "Parametric processes and nonlinear dynamics of self-starting frequency combs", Proc. SPIE PC12440, Novel In-Plane Semiconductor Lasers XXII, PC124400G (17 March 2023); https://doi.org/10.1117/12.2651256

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