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Abstract

The design of a diffraction grating used as an output coupler for a Fabry-Pérot resonator is presented. The problem of determining the distortion and the cross-polarisation of the incident Gaussian beam is then considered. Different types of gratings, plane with straight or curvilinear grooves and elliptical, have been designed and built. The output pattern from a resonator using such a grating has been measured experimentally. It was found that the elliptical grating generates the least distortion and cross-polarisation. This result is attributed to the geometry of the grooves and is in excellent agreement with numerical calculations.

Additional information

Authors: TRAN M Q ET AL., Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);KASPAREK W, Universität Stuttgart, Institut für Plasmaforschung (DE)
Bibliographic Reference: Report: LRP 458/92 EN (1992)
Availability: Available from Confédération Suisse, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, 21 avenue des Bains, 1007 Lausanne (CH)
Record Number: 199211540 / Last updated on: 1994-11-29
Category: PUBLICATION
Original language: en
Available languages: en
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