Laser emission from tapered fiber-based liquid-crystal microsphere for sensing

被引：3

作者：

Zhou, Dong ^{[1
]}

Zhao, Na ^{[1
]}

Chen, Yuzhou ^{[1
]}

Sun, Jing ^{[1
]}

Li, Yuxiang ^{[1
]}

Peng, Zenghui ^{[2
]}

Liu, Yongjun ^{[1
,2
]}

机构：

[1] Harbin Engn Univ, Key Lab Fiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Peoples R China

来源：

OPTICS LETTERS | 2023年 / 48卷 / 14期

关键词：

D O I：

10.1364/OL.492930

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This Letter introduces a novel laser emission probe for liquid-crystal microspheres based on a tapered fiber. A cholesteric liquid crystal (CLC) is injected into a hollow glass microsphere (HGM) attached at the front end of a tapered fiber in order to produce laser. Tapered fibers are preferable to rectangular fibers for liquid-crystal micro-sphere laser emission. The whispering gallery mode (WGM) laser is significantly suppressed by the tapered fiber-based liquid-crystal microsphere, which also displays an apparent single-mode photonic bandgap (PBG) laser peak. The stimulation response of tapered fiber-based liquid-crystal microspheres to organic vapors causes a modification of the laser peak wavelength with increasing gas concentration. In addition, laser emission generated by tapered fiber-based liquid-crystal microspheres is expected to be used in fields such as microenvironmental biosensing. (C) 2023 Optica Publishing Group

引用

页码：3773 / 3776

页数：4

共 2 条

[1] Cure monitoring of carbon-epoxy composites by optical fiber-based distributed strain-temperature sensing system
Department of Aeronautics and Astronautics, Graduate School of Engineering, University of Tokyo, Tokyo, Japan
不详
Adv. Compos Mater., 1600, 3 (259-271):
[2] Similarity of adjacent-frame chaos waveforms from semiconductor fiber ring laser in sensing applications
Liu, Chen
Fang, Nian
Wang, Lutang
Huang, Zhaoming
Proceedings of SPIE - The International Society for Optical Engineering, 2012, 8554

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