Sodium D2 resonance radiation in single-pass sum-frequency generation with actively mode-locked Nd:YAG lasers.
We report on a sodium D(2) resonance coherent light source achieved in single-pass sum-frequency generation in periodically poled MgO-doped stoichiometric lithium tantalate with actively mode-locked Nd:YAG lasers. Mode-locked pulses at 1064 and 1319 nm are synchronized with a time resolution of 37 ps with the phase adjustment of the radio frequencies fed to acousto-optic mode lockers. An output power of 4.6 W at 589.1586 nm is obtained, and beam quality near the diffraction limit is also achieved in a simple design.
Saito
Norihito
N
Solid-State Optical Science Research Unit, RIKEN, 2-1 Hirosawa, Wako Saitama 351-0198, Japan. norihito@riken.jp
Akagawa
Kazuyuki
K
Ito
Mayumi
M
Takazawa
Akira
A
Hayano
Yutaka
Y
Saito
Yoshihiko
Y
Ito
Meguru
M
Takami
Hideki
H
Iye
Masanori
M
Wada
Satoshi
S