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Latifi H, Chenari Z, Doroodmand F. Adiabatic Tapered Optical Fiber Fabrication for Exciting Whispering Gallery Modes in Microcavities . ICOP & ICPET _ INPC _ ICOFS 2014; 20 :1213-1216
URL: http://opsi.ir/article-1-376-en.html
URL: http://opsi.ir/article-1-376-en.html
Abstract: (5222 Views)
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 aqua environment.
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