This article is cited in 1 paper

LASER SYSTEM COMPONENTS AND DEVICES

Single-mode laser operation in a wide-aperture unstable cavity with a semitransparent output coupler and intracavity astigmatism

N. V. Kupryaev, P. A. Mikheev, A. A. Shepelenko

Samara Branch of P. N. Lebedev Physical Institute, Russian Academy of Sciences

Abstract: The feasibility and conditions of attaining single-mode operation of a CO₂ laser with Fresnel numbers of the order of 10 and considerable intracavity astigmatism were investigated experimentally employing an unstable cavity with a homogenous output coupler. The condition for single-mode laser output was an instability of the cavity in at least one of the symmetry planes imposed by astigmatism.

PACS: 42.55.Lt, 42.60.Da

Received: 01.01.1996

 English version: Quantum Electronics, 1996, 26:4, 348–350

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