Tuning of polarization-dependent whispering gallery modes in grapefruit microstructured optical fibers infiltrated with negative dielectric anisotropy liquid crystals

Yang, Chengkun and Zhang, Hao and Liu, Bo and Liu, Haifeng and Wang, Chao and Lin, Shiwei (2018) Tuning of polarization-dependent whispering gallery modes in grapefruit microstructured optical fibers infiltrated with negative dielectric anisotropy liquid crystals. Journal of Lightwave Technology, . ISSN 0733-8724. (doi:https://doi.org/10.1109/JLT.2018.2845104) (Full text available)

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https://doi.org/10.1109/JLT.2018.2845104

Abstract

An electrically tunable whispering gallery mode (WGM) microresonator based on microstructured optical fibers (MOFs) infiltrated with negative dielectric anisotropy liquid crystals (LCs) is proposed and experimentally demonstrated. Experimental results indicate that the second radial order mode of the MOF microresonator has stronger electric field response than the first radial order mode and the resonance dip for TE polarization mode is more sensitive to the applied electric field intensity in comparison with the TM polarization mode resonance dip. The Freedericksz transition threshold of the proposed MOF microresonator is experimentally found to be about 2.0 V/um. The electrically tunable microresonator integrated with negative dielectric anisotropy LCs is anticipated to find potential applications in optical filtering, all-optical switching, and electrically controlled micro-optics devices.

Item Type: Article
Uncontrolled keywords: Whispering gallery mode, Optical microresonator, Microstructured optical fiber, Liquid crystals, Mode tuning.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications, Fibre-optics
Divisions: Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Chao Wang
Date Deposited: 05 Jun 2018 09:05 UTC
Last Modified: 11 Jun 2018 14:13 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/67202 (The current URI for this page, for reference purposes)
Wang, Chao: https://orcid.org/0000-0002-0454-8079
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