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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 17 — Aug. 23, 2004
  • pp: 4094–4102

All optical switching and continuum generation in silicon waveguides

Özdal Boyraz, Prakash Koonath, Varun Raghunathan, and Bahram Jalali  »View Author Affiliations


Optics Express, Vol. 12, Issue 17, pp. 4094-4102 (2004)
http://dx.doi.org/10.1364/OPEX.12.004094


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Abstract

First demonstration of cross phase modulation based interferometric switch is presented in silicon on insulator waveguides. By using Mach-Zehnder interferometric configuration we experimentally demonstrate switching of CW signal ~25 nm away from the pump laser. We present the effect of free carrier accumulation on switching. Additionally, we theoretically analyze the transient effects and degradations due to free carrier absorption, free carrier refraction and two photon absorption effects. Results suggest that at low peak power levels the system is governed by Kerr nonlinearities. As the input power levels increase the free carrier effects becomes dominant. Effect of free carrier generation on continuum generation and power transfer also theoretically analyzed and spectral broadening factor for high input power levels is estimated.

© 2004 Optical Society of America

OCIS Codes
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(230.4320) Optical devices : Nonlinear optical devices
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Research Papers

History
Original Manuscript: July 22, 2004
Revised Manuscript: August 13, 2004
Published: August 23, 2004

Citation
Özdal Boyraz, Prakash Koonath, Varun Raghunathan, and Bahram Jalali, "All optical switching and continuum generation in silicon waveguides," Opt. Express 12, 4094-4102 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-17-4094


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