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Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization

Ultrastable high-spectral-purity lasers have served as the cornerstone behind optical atomic clocks, quantum measurements, precision optical microwave generation, high-resolution optical spectroscopy, and sensing. Hertz-level lasers stabilized to high-finesse Fabry-Pérot cavities are typically used...

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Autores principales: Lim, Jinkang, Savchenkov, Anatoliy A., Dale, Elijah, Liang, Wei, Eliyahu, Danny, Ilchenko, Vladimir, Matsko, Andrey B., Maleki, Lute, Wong, Chee Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5431900/
https://www.ncbi.nlm.nih.gov/pubmed/28364116
http://dx.doi.org/10.1038/s41467-017-00021-9
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author Lim, Jinkang
Savchenkov, Anatoliy A.
Dale, Elijah
Liang, Wei
Eliyahu, Danny
Ilchenko, Vladimir
Matsko, Andrey B.
Maleki, Lute
Wong, Chee Wei
author_facet Lim, Jinkang
Savchenkov, Anatoliy A.
Dale, Elijah
Liang, Wei
Eliyahu, Danny
Ilchenko, Vladimir
Matsko, Andrey B.
Maleki, Lute
Wong, Chee Wei
author_sort Lim, Jinkang
collection PubMed
description Ultrastable high-spectral-purity lasers have served as the cornerstone behind optical atomic clocks, quantum measurements, precision optical microwave generation, high-resolution optical spectroscopy, and sensing. Hertz-level lasers stabilized to high-finesse Fabry-Pérot cavities are typically used for these studies, which are large and fragile and remain laboratory instruments. There is a clear demand for rugged miniaturized lasers with stabilities comparable to those of bulk lasers. Over the past decade, ultrahigh-Q optical whispering-gallery-mode resonators have served as a platform for low-noise microlasers but have not yet reached the stabilities defined by their fundamental noise. Here, we show the noise characteristics of whispering-gallery-mode resonators and demonstrate a resonator-stabilized laser at this limit by compensating the intrinsic thermal expansion, allowing a sub-25 Hz linewidth and a 32 Hz Allan deviation. We also reveal the environmental sensitivities of the resonator at the thermodynamical noise limit and long-term frequency drifts governed by random-walk-noise statistics.
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spelling pubmed-54319002017-05-18 Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization Lim, Jinkang Savchenkov, Anatoliy A. Dale, Elijah Liang, Wei Eliyahu, Danny Ilchenko, Vladimir Matsko, Andrey B. Maleki, Lute Wong, Chee Wei Nat Commun Article Ultrastable high-spectral-purity lasers have served as the cornerstone behind optical atomic clocks, quantum measurements, precision optical microwave generation, high-resolution optical spectroscopy, and sensing. Hertz-level lasers stabilized to high-finesse Fabry-Pérot cavities are typically used for these studies, which are large and fragile and remain laboratory instruments. There is a clear demand for rugged miniaturized lasers with stabilities comparable to those of bulk lasers. Over the past decade, ultrahigh-Q optical whispering-gallery-mode resonators have served as a platform for low-noise microlasers but have not yet reached the stabilities defined by their fundamental noise. Here, we show the noise characteristics of whispering-gallery-mode resonators and demonstrate a resonator-stabilized laser at this limit by compensating the intrinsic thermal expansion, allowing a sub-25 Hz linewidth and a 32 Hz Allan deviation. We also reveal the environmental sensitivities of the resonator at the thermodynamical noise limit and long-term frequency drifts governed by random-walk-noise statistics. Nature Publishing Group UK 2017-03-31 /pmc/articles/PMC5431900/ /pubmed/28364116 http://dx.doi.org/10.1038/s41467-017-00021-9 Text en © The Author(s) 2017 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Lim, Jinkang
Savchenkov, Anatoliy A.
Dale, Elijah
Liang, Wei
Eliyahu, Danny
Ilchenko, Vladimir
Matsko, Andrey B.
Maleki, Lute
Wong, Chee Wei
Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title_full Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title_fullStr Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title_full_unstemmed Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title_short Chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
title_sort chasing the thermodynamical noise limit in whispering-gallery-mode resonators for ultrastable laser frequency stabilization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5431900/
https://www.ncbi.nlm.nih.gov/pubmed/28364116
http://dx.doi.org/10.1038/s41467-017-00021-9
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