Harmonic conversion of large-aperture 1.05-microm laser beams for inertial-confinement fusion research.
To provide high-energy, high-power beams at short wavelengths for inertial-confinement fusion experiments, we routinely convert the 1.05-microm output of the Nova, Nd:phosphate-glass, laser system to its second- or third-harmonic wavelength. We describe the design and performance of the 3 x 3 arrays of potassium dihydrogen phosphate crystal plates used for type-II-type-II phase-matched harmonic conversion of the Nova 0.74-m diameter beams. We also describe an alternate type-I-type-II phasematching configuration that improves third-harmonic conversion efficiency. These arrays provide conversion of a Nova beam of up to 75% to the second harmonic and of up to 70% to the third harmonic.
Wegner
P J
PJ
Henesian
M A
MA
Speck
D R
DR
Bibeau
C
C
Ehrlich
R B
RB
Laumann
C W
CW
Lawson
J K
JK
Weiland
T L
TL