Embedded whispering-gallery mode microsphere resonator in a tapered hollow annular core fiber

被引：0

作者：

JIAWEI WANG ^{[1
]}

XIAOBEI ZHANG ^{[1
]}

MING YAN ^{[1
]}

LEI YANG ^{[1
]}

FENGYU HOU ^{[1
]}

WEN SUN ^{[1
]}

XIAOTONG ZHANG ^{[2
]}

LIBO YUAN ^{[3
]}

HAI XIAO ^{[4
]}

TINGYUN WANG ^{[1
]}

机构：

[1] Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University

[2] The Key Laboratory of In-Fiber Integrated Optics, Ministry of Education, College of Science, Harbin Engineering University

[3] School of Electronic Engineering and Automation, Guilin University of Electronic Technology

[4] Department of Electrical and Computer Engineering, Clemson University

来源：

Photonics Research | 2018年 / 12期

基金：

中国国家自然科学基金; 上海市自然科学基金;

关键词：

WGM; Embedded whispering-gallery mode microsphere resonator in a tapered hollow annular core fiber;

D O I：

暂无

中图分类号：

TN622 [耦合器、定向耦合器]; TN751.2 [谐振];

学科分类号：

摘要：

We propose and demonstrate a tapered hollow annular core fiber (HACF) coupler for excitation of whisperinggallery modes (WGMs) of an embedded microsphere resonator. The coupler is simply fabricated by fusion splicing of a segment of HACF with the single-mode fiber (SMF), and then improved by tapering the splicing joint to reduce the cone-apex angle. Therefore, the coupling efficiency from the SMF to the HACF is enhanced to excite various WGMs via evanescent field coupling. Normal positive, negative symmetrical Lorentzian and asymmetric Fano line shapes can be obtained by varying the resonator size and location. Another interesting phenomenon is observed that a higher Q-factor mode in a lower Q-factor mode has a contrast as high as 58. Temperature sensing with good stability is also demonstrated. This embedded WGM microsphere resonator in the tapered HACF is expected to promote environmental adaptability in practical applications due to its simplicity and robustness

引用

页码：1124 / 1129

页数：6

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