Open Access240 kW peak power at 266 nm in nonlinear YAl_3(BO_3)_4 single crystal
Author(s) -
Simon Ilas,
Pascal Loiseau,
G. Aka,
Takunori Taira
Publication year - 2014
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.22.030325
Subject(s) - materials science , optics , energy conversion efficiency , lithium triborate , second harmonic generation , laser , homogeneity (statistics) , crystal (programming language) , nonlinear optics , phase matching , single crystal , optoelectronics , chemistry , physics , statistics , mathematics , computer science , programming language , crystallography
We report the fourth harmonic generation at 266 nm using a type I YAl3(BO3)4 (YAB) single crystal from a Q-switch microchip laser Nd:YAG/Cr⁴⁺:YAG frequency doubled with a LiB3O5 (LBO) crystal. 240 kW peak power at 266 nm corresponding to a mean conversion efficiency of 12.2% from 532 to 266 nm has been obtained with a 2.94 mm thick YAB crystal. The influences of optical homogeneity and absorption on the conversion efficiency are discussed.