Cy. Wang et al., Dynamic process of self-started self-mode-locked Ti : sapphire laser with a semiconductor saturable absorber mirror, OPT LASER T, 33(2), 2001, pp. 81-83
Dynamic process of self-started self-mode-locked Ti:sapphire laser with a s
emiconductor saturable absorber mirror (SESAM) was investigated and two mod
e-locking starting processes were found in which one is fast and the other
is slow. In the fast starting process, a mode-locking build-up time of abou
t 400 mus was needed during which pure passive mode-locking process was cau
sed by the SESAM and Kerr-lens mode-locking process arose from the nonlinea
rity of the Ti:sapphire gain medium. In the slow starting process, a build-
up time of about several minutes was found in which temperature effect of t
he SESAM dominates the dynamic process. (C) 2001 Elsevier Science Ltd. All
rights reserved.