Study of microcomb threshold power with coupling scaling

Abstract We model the generation threshold and conversion efficiency of microcombs by scaling the cavity coupling. With the Lugiato–Lefever equation (LLE), quantitative analysis of threshold is established in the parameter space of pump power and coupling. Considering the large detuning and Kerr-ind...

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Autores principales:	Pei-Hsun Wang, Kuan-Lin Chiang, Zong-Ren Yang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3c93a9aab9364d56a21feff92dd8e1a3
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id	oai:doaj.org-article:3c93a9aab9364d56a21feff92dd8e1a3
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spelling	oai:doaj.org-article:3c93a9aab9364d56a21feff92dd8e1a32021-12-02T14:35:40ZStudy of microcomb threshold power with coupling scaling10.1038/s41598-021-89411-02045-2322https://doaj.org/article/3c93a9aab9364d56a21feff92dd8e1a32021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-89411-0https://doaj.org/toc/2045-2322Abstract We model the generation threshold and conversion efficiency of microcombs by scaling the cavity coupling. With the Lugiato–Lefever equation (LLE), quantitative analysis of threshold is established in the parameter space of pump power and coupling. Considering the large detuning and Kerr-induced phase shift, the threshold power is numerically solved with the minimum at over-coupling, in agreement with that from the traveling wave theory. Furthermore, the coupling dependence on microcomb generation is discussed, providing the accessibility of high-efficient, stable combs (≥ 40%) around the threshold. This work offers universal guidelines for the design of microcombs with low-power and high-efficient operation.Pei-Hsun WangKuan-Lin ChiangZong-Ren YangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Pei-Hsun Wang Kuan-Lin Chiang Zong-Ren Yang Study of microcomb threshold power with coupling scaling
description	Abstract We model the generation threshold and conversion efficiency of microcombs by scaling the cavity coupling. With the Lugiato–Lefever equation (LLE), quantitative analysis of threshold is established in the parameter space of pump power and coupling. Considering the large detuning and Kerr-induced phase shift, the threshold power is numerically solved with the minimum at over-coupling, in agreement with that from the traveling wave theory. Furthermore, the coupling dependence on microcomb generation is discussed, providing the accessibility of high-efficient, stable combs (≥ 40%) around the threshold. This work offers universal guidelines for the design of microcombs with low-power and high-efficient operation.
format	article
author	Pei-Hsun Wang Kuan-Lin Chiang Zong-Ren Yang
author_facet	Pei-Hsun Wang Kuan-Lin Chiang Zong-Ren Yang
author_sort	Pei-Hsun Wang
title	Study of microcomb threshold power with coupling scaling
title_short	Study of microcomb threshold power with coupling scaling
title_full	Study of microcomb threshold power with coupling scaling
title_fullStr	Study of microcomb threshold power with coupling scaling
title_full_unstemmed	Study of microcomb threshold power with coupling scaling
title_sort	study of microcomb threshold power with coupling scaling
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3c93a9aab9364d56a21feff92dd8e1a3
work_keys_str_mv	AT peihsunwang studyofmicrocombthresholdpowerwithcouplingscaling AT kuanlinchiang studyofmicrocombthresholdpowerwithcouplingscaling AT zongrenyang studyofmicrocombthresholdpowerwithcouplingscaling
_version_	1718391065706233856

Study of microcomb threshold power with coupling scaling

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