Mid-infrared soliton and Raman frequency comb generation in silicon microrings

Year: 2014

Authors: Hansson T., Modotto D., Wabnitz S.

Autors Affiliation: Dipartimento di Ingegneria dell\’Informazione, Università di Brescia, via Branze 38, Brescia, 25123, Italy; Department of Applied Physics, Chalmers University of Technology, Göteborg, SE-41296, Sweden

Abstract: We numerically study the mechanisms of frequency comb generation in the mid-infrared spectral region from cw-pumped silicon microring resonators. Coherent soliton comb generation may be obtained even for a pump with zero linear cavity detuning, through suitable control of the effective lifetime of free carriers from multiphoton absorption, which introduces a nonlinear cavity detuning via free-carrier dispersion. Conditions for optimal octave spanning Raman comb generation are also described.

Journal/Review: OPTICS LETTERS

Volume: 39 (23)      Pages from: 6747  to: 6750

More Information: This research was funded by Fondazione Cariplo (grant 2011-0395), the Italian Ministry of University and Research (grant 2012BFNWZ2), and the Swedish Research Council (grant 2013-7508).
KeyWords: Multiphoton processes; Solitons, Coherent solitons; Effective lifetime; Mid-infrared spectral regions; Multi-photon absorption; Nonlinear cavities; Raman frequencies; Silicon microring resonators; Silicon microrings, Infrared devices
DOI: 10.1364/OL.39.006747

Citations: 38
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