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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 7 — Apr. 1, 2013
  • pp: 1016–1018

Compact optical switch based on 2D photonic crystal and magneto-optical cavity

Victor Dmitriev, Marcelo N. Kawakatsu, and Gianni Portela  »View Author Affiliations


Optics Letters, Vol. 38, Issue 7, pp. 1016-1018 (2013)
http://dx.doi.org/10.1364/OL.38.001016


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Abstract

A compact optical switch based on a 2D photonic crystal (PhC) and a magneto-optical cavity is suggested and analyzed. The cavity is coupled to two parallel and misaligned PC waveguides and operates with dipole mode. When the cavity is nonmagnetized, the dipole mode excited by a signal in the input waveguide has a node in the output waveguide. Therefore, the input signal is reflected from the cavity. This corresponds to the state off of the switch. Normal to the plane of the PhC magnetization by a dc magnetic field produces a rotation of the dipole pattern in the cavity providing equal amplitudes of the electromagnetic fields in the input and the output waveguides. This corresponds to the state on with high transmission of the input signal. Numerical calculations show that at the 1.55 μm wavelength the device has the insertion loss 0.42dB in the on state, the isolation 19dB in the off state and the switch off and on ratio Pon/Poff about 72. The frequency band at the level of 15dB of the resonance curve in off state is about 160 GHz.

© 2013 Optical Society of America

OCIS Codes
(130.4815) Integrated optics : Optical switching devices
(230.5298) Optical devices : Photonic crystals

ToC Category:
Integrated Optics

History
Original Manuscript: December 7, 2012
Revised Manuscript: February 18, 2013
Manuscript Accepted: February 18, 2013
Published: March 19, 2013

Citation
Victor Dmitriev, Marcelo N. Kawakatsu, and Gianni Portela, "Compact optical switch based on 2D photonic crystal and magneto-optical cavity," Opt. Lett. 38, 1016-1018 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-7-1016


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