Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/79988
Title: Directional single-mode emission from coupled whispering gallery resonators realized by using ZnS microbelts
Authors: Zhu, Hai
Yu, Siu Fung
Wang, Qi Jie
Shan, Chong Xin
Su, S. C.
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2013
Source: Zhu, H., Yu, S. F., Wang, Q. J., Shan, C. X., & Su, S. C. (2013). Directional single-mode emission from coupled whispering gallery resonators realized by using ZnS microbelts. Optics Letters, 38(9), 1527-1529.
Series/Report no.: 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: https://hdl.handle.net/10356/79988
http://hdl.handle.net/10220/11899
DOI: 10.1364/OL.38.001527
Rights: © 2013 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following official DOI: [http://dx.doi.org/10.1364/OL.38.001527]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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