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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 30, Iss. 15 — Aug. 1, 2005
  • pp: 1989–1991

Optical circulators in two-dimensional magneto-optical photonic crystals

Zheng Wang and Shanhui Fan  »View Author Affiliations


Optics Letters, Vol. 30, Issue 15, pp. 1989-1991 (2005)
http://dx.doi.org/10.1364/OL.30.001989


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Abstract

We propose an optical circulator formed of a magneto-optical cavity in a 2D photonic crystal. With spatially engineered magnetic domain structures, the cavity can be designed to support a pair of counterrotating states at different frequencies. By coupling the cavity to three waveguides, and by proper matching of the frequency split of the cavity modes with the coupling strength between the cavity and the waveguide, ideal three-port circulators with complete isolation and transmission can be created. We present a guideline for domain design needed to maximize the modal coupling and the operational bandwidth for any given magneto-optical constant.

© 2005 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.3810) Optical devices : Magneto-optic systems
(230.5750) Optical devices : Resonators

Citation
Zheng Wang and Shanhui Fan, "Optical circulators in two-dimensional magneto-optical photonic crystals," Opt. Lett. 30, 1989-1991 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-15-1989


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