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
Opt Express. 2018 Dec 24;26(26):34965-34976. doi: 10.1364/OE.26.034965.
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.
我们利用可见激光二极管发出的光，通过热光效应直接调谐片上硅微谐振器。我们表明，这种直接调谐是局部的、非侵入性的，并且时间常数比全局温度调谐方法小得多。对于由量子级联激光器泵浦的微谐振器中的克尔频率梳产生而言，这种方法可能被证明是非常有效的，因为量子级联激光器难以轻松调谐以实现频率梳产生和孤子锁模状态。
