Abstract

A method of calculating the angular alignment tolerance of a Porro prism laser oscillator is presented. The reduction in mode volume due to misalignment is found by a ray optical approach. An analytical expression for alignment tolerance, in terms of resonator length L, prism azimuth angle θ, rod location L₂, and rod aperture radius a is obtained. An experiment was set up to measure the laser output reduction due to reflector tilting. Results obtained are in good agreement with the theoretical predictions.

© 1989 Optical Society of America

Lateral displacement of the mode axis in a misaligned Porro prism resonator

Jyh-Fa Lee and Chung-Yee Leung
Appl. Opt. 28(24) 5278-5284 (1989)

Beam pointing direction changes in a misaligned Porro prism resonator

Jyh-Fa Lee and Chung-Yee Leung
Appl. Opt. 27(13) 2701-2707 (1988)

Laser resonator: an electrooptically Q-switched Porro prism device

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Petal-like modes in Porro prism resonators

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Kaleidoscope modes in large aperture Porro prism resonators

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