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

被引：8

作者：

Chang, Pengfa ^{[1
,2
]}

Cao, Botao ^{[1
,2
]}

Gao, Feng ^{[1
,2
]}

Huang, Ligang ^{[3
]}

Zhang, Wending ^{[4
,5
]}

Bo, Fang ^{[1
,2
]}

Yu, Xuanyi ^{[1
,2
]}

Zhang, Guoquan ^{[1
,2
]}

Xu, Jingjun ^{[1
,2
]}

机构：

[1] Nankai Univ, TEDA Inst Appl Phys, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300457, Peoples R China

[2] Nankai Univ, Sch Phys, Tianjin 300457, Peoples R China

[3] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China

[4] Northwestern Polytech Univ, Sch Sci, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Shaanxi, Peoples R China

[5] Northwestern Polytech Univ, Sch Sci, Shaanxi Key Lab Opt Informat Technol, Xian 710072, Shaanxi, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2019年 / 115卷 / 21期

关键词：

WHISPERING-GALLERY MODES; OPTICAL RESONATORS; RING LASER; FIBER; MICROCAVITIES; RESONANCES; CONVERSION; MICROWAVE; FILTER;

D O I：

10.1063/1.5121452

中图分类号：

O59 [应用物理学];

学科分类号：

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 lm 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. Published under license by AIP Publishing.

引用

页数：4

共 30 条

[1] Ultra-high-Q toroid microcavity on a chip [J].