Nanosecond periodically poled lithium niobate optical parametric generator pumped at 532 nm by a single-frequency passively Q-switched Nd:YAG laser.
We report an efficient, visible, nanosecond optical parametric generator of periodically poled lithium niobate pumped at 532 nm by a frequency-doubled, diode-pumped, passively Q -switched, single-mode Nd:YAG laser with 90-muJ pulse energy. The signal radiation is tunable from 637 to 593 nm. The maximum signal-conversion efficiency is 23%. Optical parametric amplification of a He-Ne laser at 632.8 nm is also studied.
Bäder
U
U
Fachbereich Physik, Universität Kaiserslautern, Erwin-Schrödinger-Strasse 46, D-67663 Kaiserlautern, Germany.
Meyn
J P
JP
Bartschke
J
J
Weber
T
T
Borsutzky
A
A
Wallenstein
R
R
Batchko
R G
RG
Fejer
M M
MM
Byer
R L
RL