Ray-wave correspondence in the nonlinear description of stadium-cavity lasers

Details Ray-wave correspondence in the nonlinear description of stadium-cavity lasers Ray-wave correspondence in the nonlinear description of stadium-cavity lasers

2006-06-26

arxiv.org/abs/physics/0606212v2

Phys. Rev. A 74, 033820 (2006)

Physics

Optics

5 pages, 5 figures, version accepted for publication

Scientific paper

10.1103/PhysRevA.74.033820

We show that the solution of fully nonlinear lasing equations for stadium cavities exhibits a highly directional emission pattern. This directionality can be well explained by a ray-dynamical model, where the dominant ray-escape dynamics is governed by the unstable manifolds of the unstable short periodic orbits for the stadium cavity. Investigating the cold-cavity modes relevant for the lasing, we found that all of the high-Q modes have the emission directionality corresponding to that of the ray-dynamical model.

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