2 June 2014 Adiabatic tapered optical fiber fabrication for exciting whispering gallery modes in microcavities
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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.
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Z. Chenari, H. Latifi, R. S. Hashemi, 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); doi: 10.1117/12.2058664; https://doi.org/10.1117/12.2058664
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