Enhance stable coupling region of a high-Q WGM up to micrometer

Pengfa Chang; Botao Cao; Feng Gao; Ligang Huang; Wending Zhang; Fang Bo; Xuanyi Yu; Guoquan Zhang; Jingjun Xu

doi:10.1063/1.5121452

Enhance stable coupling region of a high-Q WGM up to micrometer

Pengfa Chang, Botao Cao, Feng Gao, Ligang Huang, Wending Zhang, Fang Bo, Xuanyi Yu, Guoquan Zhang, Jingjun Xu

物理科学与技术学院

科研成果: 期刊稿件 › 文章 › 同行评审

8 引用（Scopus）

摘要

A configuration to obtain the quasicritical coupling state with an enhanced stable coupling region was proposed and demonstrated experimentally by coupling two perpendicular vector modes in tapered fiber with the whispering gallery mode (WGM) in a microresonator. The observed stable coupling region of the high-Q WGM could be up to 1 μm with reliable polarization stability. This work makes it possible to apply direct laser writing and photolithography to prepare controllable coupling for on-chip ultrahigh-Q WGM microcavities and could also improve the stability of packaged WGM structures, which will be beneficial for WGM-based applications such as narrow-linewidth lasers and configurable microwave photonics.

源语言	英语
文章编号	211104
期刊	Applied Physics Letters
卷	115
期	21
DOI	https://doi.org/10.1063/1.5121452
出版状态	已出版 - 18 11月 2019

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abstract = "A configuration to obtain the quasicritical coupling state with an enhanced stable coupling region was proposed and demonstrated experimentally by coupling two perpendicular vector modes in tapered fiber with the whispering gallery mode (WGM) in a microresonator. The observed stable coupling region of the high-Q WGM could be up to 1 μm with reliable polarization stability. This work makes it possible to apply direct laser writing and photolithography to prepare controllable coupling for on-chip ultrahigh-Q WGM microcavities and could also improve the stability of packaged WGM structures, which will be beneficial for WGM-based applications such as narrow-linewidth lasers and configurable microwave photonics.",

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AU - Chang, Pengfa

AU - Cao, Botao

AU - Gao, Feng

AU - Huang, Ligang

AU - Zhang, Wending

AU - Bo, Fang

AU - Yu, Xuanyi

AU - Zhang, Guoquan

AU - Xu, Jingjun

PY - 2019/11/18

Y1 - 2019/11/18

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AB - A configuration to obtain the quasicritical coupling state with an enhanced stable coupling region was proposed and demonstrated experimentally by coupling two perpendicular vector modes in tapered fiber with the whispering gallery mode (WGM) in a microresonator. The observed stable coupling region of the high-Q WGM could be up to 1 μm with reliable polarization stability. This work makes it possible to apply direct laser writing and photolithography to prepare controllable coupling for on-chip ultrahigh-Q WGM microcavities and could also improve the stability of packaged WGM structures, which will be beneficial for WGM-based applications such as narrow-linewidth lasers and configurable microwave photonics.

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Enhance stable coupling region of a high-Q WGM up to micrometer

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