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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 8 — Apr. 22, 2013
  • pp: 9624–9635

Controllable mode multistability in microring lasers

Guohui Yuan and Zhuoran Wang  »View Author Affiliations


Optics Express, Vol. 21, Issue 8, pp. 9624-9635 (2013)
http://dx.doi.org/10.1364/OE.21.009624


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Abstract

We investigate mode multistability, i.e. coexistence of direction bistability and wavelength bi/multistability in microring lasers (MRLs) theoretically and numerically. We derive the expressions for conditions required for mode multistable operation in microring lasers based on a nonlinear multimode model with nonlinear effects stemming from carrier density pulsation, carrier heating and spectral hole burning included. We find theoretically that lasing mode can be selected from the multistable modes by external optical injection through gain saturation, and removal of the external optical injection will not affect the stability of the established lasing mode. Numerical results on all-optical multistate flip-flop function demonstrate that switching between multistable modes can be induced by trigger signals with each states self-sustained after the removal of the trigger signals in a 50µm-radius microring laser.

© 2013 OSA

OCIS Codes
(140.3560) Lasers and laser optics : Lasers, ring
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.1450) Nonlinear optics : Bistability
(140.3948) Lasers and laser optics : Microcavity devices
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 6, 2012
Revised Manuscript: February 15, 2013
Manuscript Accepted: March 17, 2013
Published: April 10, 2013

Citation
Guohui Yuan and Zhuoran Wang, "Controllable mode multistability in microring lasers," Opt. Express 21, 9624-9635 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-8-9624


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