Type

Journal Article

Authors

Yuliya Semenova
Arun Mallik
Qiang wu
Gerald Farrell
Vishnu Kavungal

Subjects

Physics

Topics
optical fabrication liquid crystal whispering gallery modes wgms engineering tunable photonic devices thermo optic tuning optical fiber tapered fiber

Thermo-optic Tuning of a Packaged Whispering Gallery Mode Resonator Filled with Nematic Liquid Crystal (2018)

Abstract Thermo-optic tuning of whispering gallery modes (WGMs) in a nematic liquid crystal-filled thin-walled capillary tube resonator is reported. WGMs were excited by the evanescent field from a tapered optical fiber. Tapered optical fiber fabrication and reduction of wall thickness of the capillary tube was carried out by a ceramic micro-heater brushing technique. A simple and robust packaging technique is demonstrated to ensure stable and repeatable operation of the device. Tunability of WGMs with temperature was demonstrated with a sensitivity of 267.5 ± 2.5 pm/°C. The demonstrated thermo-optic method for WGMs tuning is potentially useful for many tunable photonic devices and sensors.
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Full list of authors on original publication

Yuliya Semenova, Arun Mallik, Qiang wu, Gerald Farrell, Vishnu Kavungal

Experts in our system

1
Yuliya Semenova
TU Dublin
Total Publications: 136
 
2
Arun Mallik
TU Dublin
Total Publications: 26
 
3
Qiang wu
TU Dublin
Total Publications: 90
 
4
Gerald Farrell
TU Dublin
Total Publications: 212
 
5
Vishnu Kavungal
TU Dublin
Total Publications: 11