Adiabatic tapered optical fiber fabrication for exciting whispering gallery modes in microcavities

Z. Chenari; H. Latifi; R. S. Hashemi; F. Doroudmand

doi:10.1117/12.2058664

2 June 2014 Adiabatic tapered optical fiber fabrication for exciting whispering gallery modes in microcavities

Z. Chenari, H. Latifi, R. S. Hashemi, F. Doroudmand

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91574D (2014) https://doi.org/10.1117/12.2058664
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

This article demonstrates an investigation and analysis of a tapered fiber fabrication using an etchant droplet method. To achieve precise control on process, a two-step etching method is proposed (using 48% concentration of HF acid and Buffered HF) which results in low-loss adiabatic tapered fiber. A spectrum analysis monitoring in addition to a microscopy system was used to verify the etching progress. Tapers with losses less than 0.4 dB in air and 4.5 dB in water are demonstrated. A biconical fiber taper fabricated using this method was used to excite the WGMs on a microsphere surface in aquatic environment.

Citation Download Citation

Z. Chenari, H. Latifi, R. S. Hashemi, and F. Doroudmand "Adiabatic tapered optical fiber fabrication for exciting whispering gallery modes in microcavities", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91574D (2 June 2014); https://doi.org/10.1117/12.2058664

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