OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 27 — Sep. 20, 2008
  • pp: 5041–5050

Ultrafast low-threshold all-optical switch implemented by arrays of ring resonators coupled to a Mach–Zehnder interferometer arm: based on 2D photonic crystals

M. A. Mansouri-Birjandi, M. K. Moravvej-Farshi, and A. Rostami  »View Author Affiliations


Applied Optics, Vol. 47, Issue 27, pp. 5041-5050 (2008)
http://dx.doi.org/10.1364/AO.47.005041


View Full Text Article

Enhanced HTML    Acrobat PDF (10257 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Using an array of m × n nonlinear ring resonators ( m = 1 , 3, 5, and n = 1 , 2, 3) coupled to the upper arm of a Mach–Zehnder interferometer (MZI), we have proposed an all-optical switch structure. Using a 5 × 3 array, we have shown the possibility of designing an all-optical switching device with a threshold intensity as low as 15 mW / m 2 and switching window of 35 ps . While using m × 1 arrays, we have achieved switching windows smaller than 10 ps , at the expense of higher switching thresholds, ranging from 37 to 55 mW / m 2 . The whole structure is based on a square lattice photonic crystal of lattice constant a = 600 nm , formed by rods of radius r = 90 nm in an air background. The linear rods’ refractive index is taken to be the same as that of Si 0.75 Ge 0.25 ; i.e., n r = 3.6 , whereas the nonlinear rod’s refractive index and Kerr index parameter are taken to be n 0 = 1.4 and n 2 = 10 14 m 2 / W . The center wavelength at which the nonlinear rings are designed to make the resonance is taken to be λ 0 = 1550 nm in free space.

© 2008 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(230.4555) Optical devices : Coupled resonators
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: May 1, 2008
Revised Manuscript: August 21, 2008
Manuscript Accepted: August 22, 2008
Published: September 19, 2008

Citation
M. A. Mansouri-Birjandi, M. K. Moravvej-Farshi, and A. Rostami, "Ultrafast low-threshold all-optical switch implemented by arrays of ring resonators coupled to a Mach-Zehnder interferometer arm: based on 2D photonic crystals," Appl. Opt. 47, 5041-5050 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-27-5041

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited