Open AccessMicrochip-laser polarization control by destructive-interference resonant-grating mirror
Author(s) -
Florent Pigeon,
Jean-Claude Pommier,
Stéphanie Reynaud,
Ο. Parriaux,
Marwan Abdou Ahmed,
S. Tonchev,
Nicolas Landru,
Jean-Philippe Fève
Publication year - 2007
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.002573
Subject(s) - optics , grating , laser , materials science , extinction ratio , polarization (electrochemistry) , diffraction grating , optoelectronics , physics , wavelength , chemistry
An output coupler comprising a resonant grating submirror monolithically associated with a standard multilayer submirror polarizes the emission of a Nd:YAG microchip laser linearly over its full emission bandwidth by intra-mirror destructive interference for the undesired polarization. A polarization extinction ratio of more than 25 dB is obtained up to 6.1microJ pulse energy. This passively Q-switched laser performance is almost identical to that of a gratingless non-polarized microchip laser. The design and fabrication of the resonant grating mirror are described.