Author(s): Yang, Y (Yang, Ye); Liu, Y (Liu, Yang); Sun, SA (Sun, Shugian); Li, W (Li, Wei); Zhu, NH (Zhu, Ninghua); Li, M (Li, Ming)

Source: OPTICS EXPRESS Volume: 27 Issue: 23 Pages: 33436-33444 DOI: 10.1364/OE.27.033436 Published: NOV 11 2019

Abstract: We observe the optical phase matching between a fiber taper and a high-order azimuthal whispering gallery mode (WGM) in a water droplet for the first time. The eccentricity of the droplet separates the wavelength of azimuthal modes. We evaluate the optical phase matching between the fiber taper mode and different azimuthal modes. In the experiments, the phase matching of a high-order azimuthal WGM (l-vertical bar m vertical bar=6) is realized around 1550 nm. The lifted azimuthal modes make high-efficient coupling easier for a probing light with narrow spectral range. They also have potential applications in detecting the shape fluctuation and eccentricity of water droplets. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Accession Number: WOS:000495871300051

ISSN: 1094-4087

Full Text: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-27-23-33436