Open AccessMegawatt level UV output from [110] Cr^4+:YAG passively Q-switched microchip laser
Author(s) -
Rakesh Bhandari,
Takunori Taira
Publication year - 2011
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.19.022510
Subject(s) - laser , optics , materials science , energy conversion efficiency , q switching , wavelength , optoelectronics , second harmonic generation , high harmonic generation , physics
Recent development of megawatt peak power, giant pulse microchip lasers has opened new opportunities for efficient wavelength conversion, provided the output of the microchip laser is linearly polarized. We obtain > 2 MW peak power, 260 ps, 100 Hz pulses at 266 nm by fourth harmonic conversion of a linearly polarized Nd:YAG microchip laser that is passively Q-switched with [110] cut Cr⁴⁺:YAG. The SHG and FHG conversion efficiencies are 85% and 51%, respectively.