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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 12 — Jun. 7, 2010
  • pp: 13057–13062

Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators

Yue-De Yang, Yong-Zhen Huang, Wei-Hua Guo, Qiaoyin Lu, and John F. Donegan  »View Author Affiliations


Optics Express, Vol. 18, Issue 12, pp. 13057-13062 (2010)
http://dx.doi.org/10.1364/OE.18.013057


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Abstract

The enhancement of quality factor for TE whispering-gallery modes is analyzed for three-dimensional microcylinder resonators based on the destructive interference between vertical leakage modes. In the microcylinder resonator, the TE whispering-gallery modes can couple with vertical propagation modes, which results in vertical radiation loss and low quality factors. However, the vertical loss can be canceled by choosing appropriate thickness of the upper cladding layer or radius of the microcylinder. A mode quality factor increase by three orders of magnitude is predicted by finite-difference time-domain simulation. Furthermore, the condition of vertical leakage cancellation is analyzed.

© 2010 OSA

OCIS Codes
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators

ToC Category:
Optical Devices

History
Original Manuscript: April 26, 2010
Revised Manuscript: May 30, 2010
Manuscript Accepted: May 30, 2010
Published: June 2, 2010

Citation
Yue-De Yang, Yong-Zhen Huang, Wei-Hua Guo, Qiaoyin Lu, and John F. Donegan, "Enhancement of quality factor for TE whispering-gallery modes in microcylinder resonators," Opt. Express 18, 13057-13062 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-12-13057


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