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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 20 — Oct. 1, 2007
  • pp: 12941–12948

Bistability and all-optical switching in semiconductor ring lasers

Toni Pérez, Alessandro Scirè, Guy Van der Sande, Pere Colet, and Claudio R. Mirasso  »View Author Affiliations

Optics Express, Vol. 15, Issue 20, pp. 12941-12948 (2007)

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Semiconductor ring lasers display a variety of dynamical regimes originating from the nonlinear competition between the clockwise and counter-clockwise propagating modes. In particular, for large pumping the system has a bistable regime in which two stationary quasi-unidirectional counter-propagating modes coexist. Bistability is induced by cross-gain saturation of the two counter-propagating modes being stronger than the self-saturation and can be used for data storage when the semiconductor ring laser is addressed with an optical pulse. In this work we study the response time when an optical pulse is injected in order to make the system switch from one mode to the counter-propagating one. We also determine the optimal pulse energy to induce switching.

© 2007 Optical Society of America

OCIS Codes
(140.3560) Lasers and laser optics : Lasers, ring
(140.5960) Lasers and laser optics : Semiconductor lasers
(200.4660) Optics in computing : Optical logic

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 11, 2007
Revised Manuscript: July 31, 2007
Manuscript Accepted: August 1, 2007
Published: September 24, 2007

Toni Pérez, Alessandro Scirè, Guy Van der Sande, Pere Colet, and Claudio R. Mirasso, "Bistability and all-optical switching in semiconductor ring lasers," Opt. Express 15, 12941-12948 (2007)

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