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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 21 — Nov. 1, 2011
  • pp: 4254–4256

Ultracompact nonreciprocal optical isolator based on guided resonance in a magneto-optical photonic crystal slab

Kejie Fang, Zongfu Yu, Victor Liu, and Shanhui Fan  »View Author Affiliations


Optics Letters, Vol. 36, Issue 21, pp. 4254-4256 (2011)
http://dx.doi.org/10.1364/OL.36.004254


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Abstract

We design an ultracompact optical isolator with normal incident geometry that operates with a bandwidth that is substantial for a device of this size. For operation in a telecommunication wavelength of 1.55 μm , the thickness of the device is less than 1 μm and the device supports an operating bandwidth of 400 GHz over which the minimum contrast ratio exceeds 25 dB . Our design utilizes guided resonance in a photonic crystal slab to enhance magneto-optical effects, and exploits interference effects among multiple resonances to create desired transmission spectral line shapes.

© 2011 Optical Society of America

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(230.3240) Optical devices : Isolators

ToC Category:
Optical Devices

History
Original Manuscript: June 28, 2011
Revised Manuscript: August 16, 2011
Manuscript Accepted: September 29, 2011
Published: October 28, 2011

Citation
Kejie Fang, Zongfu Yu, Victor Liu, and Shanhui Fan, "Ultracompact nonreciprocal optical isolator based on guided resonance in a magneto-optical photonic crystal slab," Opt. Lett. 36, 4254-4256 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-21-4254


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