Direct thermo-optical tuning of silicon microresonators for the mid-infrared

We use light from a visible laser diode to directly tune silicon-on-chip microresonators by thermo-optical effect. We show that this direct tuning is local, non invasive and has a much smaller time constant than global temperature tuning methods. Such an approach could prove to be highly effective f...

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Bibliographic Details
Published in:Optics express 2018-12, Vol.26 (26), p.34965-34976
Main Authors: Koehler, L, Chevalier, P, Shim, E, Desiatov, B, Shams-Ansari, A, Piccardo, M, Okawachi, Y, Yu, M, Loncar, M, Lipson, M, Gaeta, A L, Capasso, F
Format: Article
Language:English
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Summary:We use light from a visible laser diode to directly tune silicon-on-chip microresonators by thermo-optical effect. We show that this direct tuning is local, non invasive and has a much smaller time constant than global temperature tuning methods. Such an approach could prove to be highly effective for Kerr comb generation in microresonators pumped by quantum cascade lasers, which cannot be easily tuned to achieve comb generation and soliton-mode locked states.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.034965