Single whispering-gallery mode lasing in polymer bottle microresonators via spatial pump engineering

Light, Science & Applications
Fuxing GuSonglin Zhuang

Abstract

Single-mode lasing in whispering-gallery mode (WGM) microresonators is challenging to achieve. In bottle microresonators, the highly non-degenerated WGMs are spatially well-separated along the long-axis direction and provide mode-selection capability. In this work, by engineering the pump intensity to modify the spatial gain profiles of bottle microresonators, we demonstrate a simple and general approach to realizing single-mode WGM lasing in polymer bottle microresonators. The pump intensity is engineered into an interference distribution on the bottle microresonator surface. By tuning the spacing between axial positions of the interference pump patterns, the mode intensity profiles of single-bottle WGMs can be spatially overlapped with the interference stripes, intrinsically enabling single-mode lasing and selection. Attractive advantages of the system, including high side-mode suppression factors >20 dB, large spectral tunability >8 nm, low-lasing threshold and reversible control, are presented. Our demonstrated approach may have a variety of promising applications, ranging from tunable single-mode lasing and sensing to nonlinear optics.

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Citations

Mar 14, 2019·Nanoscale·Zhang ZhangLimin Tong
Feb 1, 2020·Small·Wangwang LiuBen Zhong Tang
Apr 4, 2018·Optics Express·Jiaxin YuSonglin Zhuang
Nov 15, 2018·Micromachines·Iraj Sadegh AmiriPreecha Yupapin
Jun 6, 2019·Optics Express·Simon J HerrIngo Breunig
Aug 11, 2018·Lab on a Chip·Chaoyang GongYun-Jiang Rao
Oct 3, 2018·Optics Letters·Yiheng YinMing Ding
Sep 1, 2018·Light, Science & Applications·Misha Sumetsky
Mar 7, 2019·Light, Science & Applications·Yanzhong LiuMing Li
May 3, 2018·Optics Express·Hai-Zhong WengYong-Zhen Huang
Nov 25, 2018·Optics Express·Shahab Bakhtiari GorajoobiMichalis N Zervas
Nov 15, 2018·Micromachines·Zhiqing Feng, Lan Bai
Jan 17, 2021·Nature Communications·Shuangyi LinghuFuxing Gu
Jan 13, 2021·Polymers·Shuai ZhangAnwer Hayat
May 15, 2021·Optics Express·Shubin SuXianfeng Chen
Jun 10, 2021·Nanoscale·Kun GeTianrui Zhai
Jun 11, 2021·Light, Science & Applications·Ting PanBaojun Li
Sep 21, 2021·ACS Applied Materials & Interfaces·Shuai ZhangTianrui Zhai
Nov 2, 2021·Nano Letters·Robert C KeitelDavid J Norris

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Methods Mentioned

BETA
light scattering

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