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arXiv · 1907.07164

Turn-key, high-efficiency Kerr comb source

Bok Young Kim·Yoshitomo Okawachi·Jae K. Jang·Mengjie Yu·Xingchen Ji·Yun Zhao·Chaitanya Joshi·Michal Lipson·Alexander L. Gaeta
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Abstract

We demonstrate an approach for automated Kerr comb generation in the normal group-velocity dispersion (GVD) regime. Using a coupled-ring geometry in silicon nitride, we precisely control the wavelength location and splitting strength of avoided mode crossings to generate low-noise frequency combs with pump-to-comb conversion efficiencies of up to 41%, which is the highest reported to date for normal-GVD Kerr combs. Our technique enables on-demand generation of a high-power comb source for applications such as wavelength-division multiplexing in optical communications.

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Bok Young Kim, Yoshitomo Okawachi, Jae K. Jang, Mengjie Yu, Xingchen Ji, Yun Zhao, Chaitanya Joshi, Michal Lipson, Alexander L. Gaeta. 2019-07-16. Turn-key, high-efficiency Kerr comb source. https://doi.org/10.1364/ol.44.004475

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