Studies of Geometrical Profiling in Fabricated Tapered Optical Fbers Using Whispering Gallery Modes Spectroscopy

Authors

Vishnu KavungalFollow
Gerald Farrell, Technological University DublinFollow
Qiang Wu, Northumbria University, Newcastle upon Tyne NE1 8ST, United KingdomFollow
Arun Kumar Mallik, Technological University DublinFollow
Yuliya Semenova, Technological University DublinFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

1.3 PHYSICAL SCIENCES, Optics

Publication Details

Optical Fiber Technology, Vol. 41, March 2018, Pages 82-88.

Abstract

This paper experimentally demonstrates a method for geometrical profiling of asymmetries in fabricated thin microfiber tapers with waist diameters ranging from ∼10 to ∼50µm 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.

DOI

10.1016/j.yofte.2018.01.007

Recommended Citation

Kavungal, V., Farrell, G., Wu, Q., Mallik, A. K., Semenova, Y. (2018) Studies of geometrical profiling in fabricated tapered optical fibers using whispering gallery modes spectroscopy. Optical Fiber Technology, Vol. 41, March 2018, Pages 82-88. doi.org/10.1016/j.yofte.2018.01.007