Open AccessAn all solid-state UV source based on a frequency quadrupled, passively Q-switched 946 nm laser
Author(s) -
Sten Johansson,
Stefan Bjurshagen,
Carlota Canalias,
Valdas Pasiskevicius,
Fredrik Laurell,
R. Koch
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.000449
Subject(s) - materials science , barium borate , optics , laser , bibo stability , energy conversion efficiency , crystal (programming language) , optoelectronics , second harmonic generation , q switching , high harmonic generation , lithium triborate , physics , quantum mechanics , nonlinear system , computer science , programming language
We report a 236 nm light source with 20 mW of average power based on critically phase-matched second-harmonic generation in a beta-barium borate crystal at room temperature. The fundamental light source was a passively Q-switched 946 nm Nd:YAG laser tunable from 10 - 38 kHz and with a pulse length of 16 ns. In the generation of 473 nm light, periodically poled KTP and BiBO was compared in terms of conversion efficiency and stability.