Studies of geometrical profiling in fabricated tapered optical fibers using whispering gallery modes spectroscopy

Vishnu Kavungal*, Gerald Farrell, Qiang Wu, Arun Kumar Mallik, Yuliya Semenova

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
29 Downloads (Pure)

Abstract

This paper experimentally demonstrates a method for geometrical profiling of asymmetries in fabricated thin microfiber tapers with waist diameters ranging from ∼10 to ∼50 µm with submicron accuracy. The method is based on the analysis of whispering gallery mode resonances excited in cylindrical fiber resonators as a result of evanescent coupling of light propagating through the fiber taper. The submicron accuracy of the proposed method has been verified by SEM studies. The method can be applied as a quality control tool in fabrication of microfiber based devices and sensors or for fine-tuning of microfiber fabrication set-ups.

Original languageEnglish
Pages (from-to)82-88
Number of pages7
JournalOptical Fiber Technology
Volume41
Early online date10 Jan 2018
DOIs
Publication statusPublished - 1 Mar 2018

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