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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 12 — Jun. 15, 2010
  • pp: 1953–1955

Analysis of coupled microcircular resonators coupled to a bus waveguide with high output efficiency

Shi-Jiang Wang, Yue-De Yang, and Yong-Zhen Huang  »View Author Affiliations


Optics Letters, Vol. 35, Issue 12, pp. 1953-1955 (2010)
http://dx.doi.org/10.1364/OL.35.001953


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Abstract

Coupled microcircular resonators tangentially coupled to a bus waveguide, which is between the resonators, are numerically investigated by the finite-difference time-domain technique. For symmetrically coupled microcircular resonators with refractive index of 3.2, radius of 2 μm , and width of the bus waveguide of 0.4 μm, a mode Q factor of the order of 10 5 is obtained for a mode at the frequency of 243 THz . An output coupling efficiency of as high as 0.99 is calculated for a mode with a Q factor ranging from 10 3 to 10 4 . The mode Q factor is 2 orders larger than that of the modes confined in a single circular resonator tangentially coupled to the same bus waveguide. Furthermore, the high Q traveling modes in the coupled microcircular resonators are suitable for optical single processing.

© 2010 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(230.7020) Optical devices : Traveling-wave devices
(230.7370) Optical devices : Waveguides

ToC Category:
Optical Devices

History
Original Manuscript: February 9, 2010
Revised Manuscript: May 14, 2010
Manuscript Accepted: May 14, 2010
Published: June 3, 2010

Citation
Shi-Jiang Wang, Yue-De Yang, and Yong-Zhen Huang, "Analysis of coupled microcircular resonators coupled to a bus waveguide with high output efficiency," Opt. Lett. 35, 1953-1955 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-12-1953


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