Laser ceramic materials for subpicosecond solid-state lasers using Nd3+-doped mixed scandium garnets.
We have successfully developed and demonstrated broadband emission Nd-doped mixed scandium garnets based on laser ceramic technology. The inhomogeneous broadening of Nd(3+) fluorescence lines results in a bandwidth above 5 nm that is significantly broader than that for Nd:YAG and enables subpicosecond mode-locked pulse durations. We have also found the emission cross section of 7.8 × 10(-20) cm(2) to be adequate for efficient energy extraction and thermal conductivity of 4.7 W/mK from these new Nd-doped laser ceramics. The new laser ceramics are good candidates for laser host material in a diode-pumped subpicosecond laser system with high efficiency and high repetition rate.
Okada
Hajime
H
Advanced Photon Research Center, Japan Atomic Energy Agency, 8-1-7 Kizugawa-City, Kyoto 619-0215, Japan. okada.hajime@jaea.go.jp
Tanaka
Momoko
M
Kiriyama
Hiromitsu
H
Nakai
Yoshiki
Y
Ochi
Yoshihiro
Y
Sugiyama
Akira
A
Daido
Hiroyuki
H
Kimura
Toyoaki
T
Yanagitani
Takagimi
T
Yagi
Hideki
H
Meichin
Noriyuki
N