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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 7 — Apr. 3, 2006
  • pp: 2744–2752

Ultrafast nonlinear dynamics of whispering-gallery mode micro-cavity lasers

A. Klaedtke and O. Hess  »View Author Affiliations


Optics Express, Vol. 14, Issue 7, pp. 2744-2752 (2006)
http://dx.doi.org/10.1364/OE.14.002744


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Abstract

We explore the ultrafast spatio-temporal dynamics of whispering-gallery micro-cavity lasers. To model the dynamics of the nonlinear whispering-gallery modes we develop a three-dimensional Finite-Difference Time-Domain modelling framework based on the spin and therefore optical polarisation resolved Maxwell-Bloch equations. The numerical algorithm brings together a real value form of the optical Bloch equations with the curl part of Maxwell’s equations. The Hamiltonian of the two-level system contains either linear or circular polarised transitions. In cylindrical micro-cavity lasers the coherent, nonlinear emission process leads to ultrafast fan-like rotational phase dynamics of the degenerate whispering-gallery modes. This rotation is shown to be arrested in gear-shaped micro-cavity lasers followed by an over-damped relaxation oscillation.

© 2006 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(030.4070) Coherence and statistical optics : Modes
(140.0140) Lasers and laser optics : Lasers and laser optics

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: January 10, 2006
Revised Manuscript: March 27, 2006
Manuscript Accepted: March 27, 2006
Published: April 3, 2006

Citation
A. Klaedtke and O. Hess, "Ultrafast nonlinear dynamics of whispering-gallery mode micro-cavity lasers," Opt. Express 14, 2744-2752 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-7-2744


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