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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 24 — Nov. 19, 2012
  • pp: 27322–27330

All-optical switch consisting of two-stage interferometers controlled by using saturable absorption of monolayer graphene

Masayuki Oya, Hiroki Kishikawa, Nobuo Goto, and Shin-ichiro Yanagiya  »View Author Affiliations


Optics Express, Vol. 20, Issue 24, pp. 27322-27330 (2012)
http://dx.doi.org/10.1364/OE.20.027322


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Abstract

At routing nodes in future photonic networks, pico-second switching will be a key function. We propose an all-optical switch consisting of two-stage Mach-Zehnder interferometers, whose arms contain graphene saturable absorption films. Optical amplitudes along the interferometers are controlled to perform switching between two output ports instead of phase control used in conventional switches. Since only absorption is used for realizing complete switching, insertion loss of 10.2 dB is accompanied in switching. Picosecond response can be expected because of the fast response of saturable absorption of graphene. The switching characteristics are theoretically analyzed and numerically simulated by the finite-difference beam propagation method (FD-BPM).

© 2012 OSA

OCIS Codes
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(230.0230) Optical devices : Optical devices
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Graphene as a Saturable Absorber

History
Original Manuscript: August 22, 2012
Revised Manuscript: October 17, 2012
Manuscript Accepted: October 18, 2012
Published: November 19, 2012

Virtual Issues
Nonlinear Photonics (2012) Optics Express

Citation
Masayuki Oya, Hiroki Kishikawa, Nobuo Goto, and Shin-ichiro Yanagiya, "All-optical switch consisting of two-stage interferometers controlled by using saturable absorption of monolayer graphene," Opt. Express 20, 27322-27330 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-24-27322


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