Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7104
Title: Directional single-mode emission from coupled whispering gallery resonators realized by using ZnS microbelts
Authors: Zhu, H
Yu, SF 
Wang, QJ
Shan, CX
Su, SC
Keywords: Laser resonators
Oscillators
UV, EUV, and X-ray lasers
Issue Date: 1-May-2013
Publisher: Optical Society of America
Source: Optics letters, 1 May 2013, v. 38, no. 9, p. 1527-1529 How to cite?
Journal: Optics letters 
Abstract: Ring microcavities were formed by wrapping ZnS microbelts, which act as the waveguide and gain region of the microcavities on the surface of optical fibers. The ring microcavities with the formation of whispering gallery modes have lasing threshold lower (Q -factor higher) than that of the ZnS microbelts. The excitation of TM modes could also be suppressed by the ring geometries of ZnS microbelts. Furthermore, directional single-mode lasing was realized from a coupled asymmetric ring microcavity. The Vernier coupling effect and deformed geometry of the asymmetric ring microcavity were contributed to the stable single-mode operation and directional emission, respectively.
URI: http://hdl.handle.net/10397/7104
ISSN: 0146-9592 (print)
1539-4794 (eISSN)
DOI: 10.1364/OL.38.001527
Rights: © 2013 Optical Society of America
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-9-1527. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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