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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 24 — Dec. 15, 2005
  • pp: 3362–3364

Adiabatic mode multiplexer for evanescent-coupling-insensitive optical switching

E. Narevicius, R. Narevich, Y. Berlatzky, I. Shtrichman, G. Rosenblum, and I. Vorobeichik  »View Author Affiliations


Optics Letters, Vol. 30, Issue 24, pp. 3362-3364 (2005)
http://dx.doi.org/10.1364/OL.30.003362


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Abstract

A novel adiabatic mode multiplexer enables a 2×2 optical switch whose operation does not depend on accumulated phase due to evanescent coupling between waveguides. The adiabatic mode multiplexer has a negligible insertion loss over C+L bands and modal cross talk better than −40 dB for any polarization state. Mode multiplexing is achieved by adiabatic transition from the fundamental mode of the single-mode waveguide to the higher mode of the multimode waveguide. Experimental measurement results for a device realized in silica-on-silicon technology are presented. By directly measuring the nonadiabatic transition probability, we show that the adiabatic mode multiplexer operates in the Landau-Zener regime.

© 2005 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.7390) Optical devices : Waveguides, planar

ToC Category:
Integrated Optics

Citation
E. Narevicius, R. Narevich, Y. Berlatzky, I. Shtrichman, G. Rosenblum, and I. Vorobeichik, "Adiabatic mode multiplexer for evanescent-coupling-insensitive optical switching," Opt. Lett. 30, 3362-3364 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-24-3362

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