Generation and mechanical tuning of Kerr frequency comb in stretchable whispering gallery modes microspheres

Eyal Yacoby; Yosef London; Shaul Pearl

doi:10.1117/12.2668669

8 March 2023 Generation and mechanical tuning of Kerr frequency comb in stretchable whispering gallery modes microspheres

Eyal Yacoby, Yosef London, Shaul Pearl

Author Affiliations +

Proceedings Volume 12447, Quantum Sensing, Imaging, and Precision Metrology; 124470M (2023) https://doi.org/10.1117/12.2668669
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

A mechanically tuned broadband Kerr frequency comb (KFC) is demonstrated in a Whispering Gallery Modes (WGM) microresonator. Due to their tiny mode volumes (V) and ultra-high Q factor ~ 10⁸, optical WGM microresonators exhibit low threshold power for nonlinear phenomena (scales as V/Q²). Here we focus on the production and mechanical tuning of a 300 nm wide Kerr Frequency Comb (KFC) in silica stretchable microspheres. The ability to tune the KFC source – and hence to lock it to a narrow atomic line – makes it suitable as the basis for a future miniature atomic clock.

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Citation Download Citation

Eyal Yacoby, Yosef London, and Shaul Pearl "Generation and mechanical tuning of Kerr frequency comb in stretchable whispering gallery modes microspheres", Proc. SPIE 12447, Quantum Sensing, Imaging, and Precision Metrology, 124470M (8 March 2023); https://doi.org/10.1117/12.2668669

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