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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 25 — Sep. 1, 2006
  • pp: 6507–6510

Highly compact asymmetric Mach–Zehnder device based on channel guides in a two-dimensional photonic crystal

Edilson A. Camargo, Harold M. H. Chong, and Richard M. De La Rue  »View Author Affiliations


Applied Optics, Vol. 45, Issue 25, pp. 6507-6510 (2006)
http://dx.doi.org/10.1364/AO.45.006507


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Abstract

We have designed and fabricated a 2D photonic crystal (PhC) asymmetric Mach–Zehnder (M-Z) device structure using W1 channel waveguides oriented along Γ K directions in silicon-on-insulator material. The asymmetric structure was designed using a PhC lattice with different filling factors. The asymmetry is obtained as a difference of two periods in the physical path length ( Δ L = 2 a ) between the arms, and it was sufficient to produce a π phase shift in the region of operation around λ = 1500 nm . The asymmetric M-Z structure is more sensitive than a symmetric M-Z structure to changes in the refractive index and therefore becomes an interesting platform for switching and sensor devices.

© 2006 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(250.5300) Optoelectronics : Photonic integrated circuits

History
Original Manuscript: December 21, 2005
Revised Manuscript: April 20, 2006
Manuscript Accepted: April 21, 2006

Citation
Edilson A. Camargo, Harold M. H. Chong, and Richard M. De La Rue, "Highly compact asymmetric Mach-Zehnder device based on channel guides in a two-dimensional photonic crystal," Appl. Opt. 45, 6507-6510 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-25-6507

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