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Proceedings Paper

On the resonance frequency of an integrated optical ring resonator with low radius of curvature
Author(s): Diaa Khalil; Amr Wageeh; Salwa El-Sabban; G. A. F. M. Khalaf
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Paper Abstract

For small radius ring resonators, the estimation of the resonance wavelength and Free Spectral Range FSR using the group index fails to give accurate results consistent with the FDTD calculation. In this work we present a new formula for the calculation of these parameters. The formula is based on the expansion of the ring effective index as a function of the wavelength and then solving the resonance equation to get the resonant wavelength and the FSR. Using this form, the error in estimating the resonance wavelength is reduced from 5.7% to less than 0.3% when compared with the FDTD calculation.

Paper Details

Date Published: 8 March 2014
PDF: 8 pages
Proc. SPIE 8988, Integrated Optics: Devices, Materials, and Technologies XVIII, 89881Q (8 March 2014); doi: 10.1117/12.2039127
Show Author Affiliations
Diaa Khalil, Ain Shams Univ. (Egypt)
Amr Wageeh, Helwan Univ. (Egypt)
Salwa El-Sabban, Helwan Univ. (Egypt)
G. A. F. M. Khalaf, Helwan Univ. (Egypt)

Published in SPIE Proceedings Vol. 8988:
Integrated Optics: Devices, Materials, and Technologies XVIII
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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