Open AccessNeodymium glass laser with a phase conjugate mirror producing 220 J pulses at 002 Hz repetition rate
Author(s) -
A. D. Kuzmin,
Е. А. Хазанов,
O.P. Kulagin,
A. A. Shaykin
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.22.020842
Subject(s) - optics , materials science , neodymium , brillouin scattering , laser , phase conjugation , ti:sapphire laser , sapphire , phase (matter) , beam (structure) , diffraction , pulse duration , laser beam quality , laser beams , physics , quantum mechanics
For pumping multipetawatt Ti:sapphire laser facilities we developed a compact repetitively pulsed laser based on neodymium phosphate glass with pulse energy of 220 J, pulse repetition rate of 0.02 Hz, beam diameter of 43 mm, aperture fill factor of 0.8, and FWHM pulse duration of 30 ns. The phase distortions of laser radiation were compensated by optical phase conjugation via stimulated Brillouin scattering. The depolarization was reduced to 0.4% using linear compensation methods. The beam quality was 2.5 x diffraction limit (150 µrad).