Holographic Mirrors for Laser Mode Control

Autor: Damien Stryckman, Geneviève Anctil, Nathalie McCarthy, Jean-François Lepage, Reza Massudi, Michel Piché, Sébastien Gilbert
Rok vydání: 1997
Předmět:
Zdroj: Applications of Photonic Technology 2 ISBN: 9781475792522
DOI: 10.1007/978-1-4757-9250-8_15
Popis: We describe the fabrication of variable reflectivity gratings by an holographic technique and the use of such components as mode selectors in lasers. Gratings with a spatially variable reflectivity profile are produced by the interference of two Gaussian beams on a photoresist material deposited on glass. The gratings have been tested with a Nd: YAG laser and a broad-area semiconductor laser; the beam shape and the modal content of the lasers were improved when the gratings were used as output couplers.
Databáze: OpenAIRE