Generalized formulation for performance degradations due to bending and edge scattering loss in microdisk resonators
Optics Express, Vol. 15, Issue 8, pp. 4452-4473 (2007)
http://dx.doi.org/10.1364/OE.15.004452
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Abstract
We present a generalized formulation for the treatment of both bending (whispering gallery) loss and scattering loss due to edge roughness in microdisk resonators. The results are applicable to microrings and related geometries. For thin disks with radii greater than the bend-loss limit, we find that the finesse limited by the scattering losses induced by edge roughness is independent of radii. While a strong lateral refractive index contrast is necessary to prevent bending losses, unless the radii are of the order of a few microns, lateral air-cladding is detrimental and only enhances scattering losses. The generalized formulation provides a framework for selecting the refractive index contrast that optimizes the finesse at a given radius.
© 2007 Optical Society of America
OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators
(230.7370) Optical devices : Waveguides
ToC Category:
Integrated Optics
History
Original Manuscript: January 29, 2007
Revised Manuscript: March 8, 2007
Manuscript Accepted: March 9, 2007
Published: April 3, 2007
Citation
John E. Heebner, Tiziana C. Bond, and Jeff S. Kallman, "Generalized formulation for performance degradations due to bending and edge scattering loss in microdisk resonators," Opt. Express 15, 4452-4473 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-8-4452
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