Open AccessPassively Q-switched Yb^3+:NaY(WO_4)_2 laser with GaAs saturable absorber
Author(s) -
Ruijun Lan,
Lei Pan,
Ilya Utkin,
Quan Ren,
Huaijin Zhang,
Zhengping Wang,
R. Fedosejevs
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.004000
Subject(s) - saturable absorption , materials science , optics , pulse (music) , pulse duration , q switching , jitter , laser , mode locking , optoelectronics , fiber laser , telecommunications , physics , detector , computer science
Passively Q-switched Yb(3+):NaY(WO(4))(2) lasers have been demonstrated using a GaAs saturable absorber. Under continuous wave pump mode, significant pulse shortening effects have been observed at high pump powers. At a pump power of 12 W, stable Q-switched output has been obtained with a pulse duration of 5 ns, pulse repetition rate of 83 kHz and a pulse to pulse timing jitter of less than 2%. With pulsed pump mode, much longer pulse duration and reduced pulse stability have been observed. It is proposed that the heating of GaAs may play an important role in the Q-switched operations under CW pump conditions.