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arXiv · 1202.1318

Frequency comb from a microresonator with engineered spectrum

Ivan S. Grudinin·Lukas Baumgartel·Nan Yu
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Abstract

We demonstrate that by varying the ratio between the linewidth and dispersion of a whispering gallery mode resonator we are able to control the number N of free spectral ranges separating the first generated comb sidebands from the pump. We observed combs with N=19 and N=1. For the comb with N=1 we have achieved a span of over 200 nm using a 0.4 mm MgF2 resonator with a pump of 50 mW, which is a factor of 10 lower than previously reported.

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Ivan S. Grudinin, Lukas Baumgartel, Nan Yu. 2012-02-07. Frequency comb from a microresonator with engineered spectrum. https://doi.org/10.1364/oe.20.006604

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