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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 |
Issue Date: | 1-May-2013 | Source: | Optics letters, 1 May 2013, v. 38, no. 9, p. 1527-1529 | 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. | Keywords: | Laser resonators Oscillators UV, EUV, and X-ray lasers |
Publisher: | Optical Society of America | Journal: | Optics letters | ISSN: | 0146-9592 | EISSN: | 1539-4794 | 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. |
Appears in Collections: | Journal/Magazine Article |
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Zhu_Emission_Coupled_Whispering.pdf | 506.97 kB | Adobe PDF | View/Open |
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