Orbital angular momentum exchange in an optical parametric oscillator

M. Martinelli, J. A. O. Huguenin, P. Nussenzveig, and A. Z. Khoury

Phys. Rev. A 70, 013812 – Published 28 July 2004

Abstract

We present a study of orbital angular momentum transfer from pump to down-converted beams in a type-II optical parametric oscillator. Cavity and anisotropy effects are investigated and demonstrated to play a central role in the transverse mode dynamics. While the idler beam can oscillate in a Laguerre-Gauss mode, the crystal birefringence induces an astigmatic effect in the signal beam that prevents the resonance of such a mode.

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Received 28 November 2003

DOI:https://doi.org/10.1103/PhysRevA.70.013812

Authors & Affiliations

M. Martinelli¹, J. A. O. Huguenin², P. Nussenzveig¹, and A. Z. Khoury^2,*

¹Instituto de Física, Universidade de São Paulo, P.O. Box 66318, CEP 05315-970 São Paulo-SP, Brazil
²Instituto de Física, Universidade Federal Fluminense, BR 24210-340, Niterói-RJ Brazil

^*Author to whom correspondence should be addressed; electronic address: khoury@if.uff.br

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Vol. 70, Iss. 1 — July 2004

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