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Conferences > FBTA > 2014 > JF2A > JF2A.9

Selective excitation of whispering gallery modes by a fiber taper

Liu Wenhui, Liu Tiegen, Jiang Junfeng, Zhang Xuezhi, Yu Zhe, Chen Wenjie, and Lin Xujun

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Abstract

Coupling from tapered fibers into the whispering gallery modes (WGM) of the optofluidic ring resonator is investigated analytically. Phase-mismatch due to the differences in propagation constants between the taper and the optofluidic ring resonator modes is taken into account. By adjusting the taper diameter to match the propagation constant of resonant mode of interest, the mode with the best sensing capability can be efficient excited on purposes.

© 2014 Optical Society of America

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