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1 April 2022 Generating an ultra-stable dual frequency comb with a microresonator
Nicholas J. Lambert, Luke S. Trainor, Harald G. L. Schwefel
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Proceedings Volume PC11987, Laser Resonators, Microresonators, and Beam Control XXIV; PC1198705 (2022) https://doi.org/10.1117/12.2614519
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Frequency combs are coherent light sources comprising multiple evenly spaced emission lines, allowing coherent sampling over a broad part of the optical spectrum. The addition of a second frequency comb results in a dual comb. Now, one comb can be used as a local oscillator frequency reference for the other, allowing spectroscopic measurement to take place at radio-frequencies. An important figure of merit is the relative frequency stability of the two combs. In this work we demonstrate efficient generation of ultrastable dual combs using an electro-optic whispering gallery mode resonator, with a relative comb line stability of order 1 mHz.
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Nicholas J. Lambert, Luke S. Trainor, and Harald G. L. Schwefel "Generating an ultra-stable dual frequency comb with a microresonator", Proc. SPIE PC11987, Laser Resonators, Microresonators, and Beam Control XXIV, PC1198705 (1 April 2022); https://doi.org/10.1117/12.2614519
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KEYWORDS
Frequency combs
Microresonators
Electro optics
Lithium niobate
Electromagnetism
Microwave radiation
Resonators
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