Open AccessPulsed laser output of LD-end-pumped 1.34 μm Nd: GdVO4 laser with Co: LaMgAl11O19 crystal as saturable absorber
Author(s) -
Wenwei Ge,
Huaijin Zhang,
Jing Wang,
Xiufeng Cheng,
Minhua Jiang,
Chunlei Du,
Shuangchen Yuan
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.003883
Subject(s) - saturable absorption , materials science , laser , optics , absorption (acoustics) , q switching , crystal (programming language) , pulse width modulation , pulse (music) , slope efficiency , optoelectronics , power (physics) , fiber laser , physics , quantum mechanics , detector , computer science , composite material , programming language
The absorption spectra of the 0.5at.% and 1at.% Co: LaMgAl11O19 (LaMg1-xCoxAl11O19, x=0.005 and 0.01, abbreviated as Co:LMA) crystals were measured at room temperature, and the results show that the Co: LMA crystals have two absorption bands, and the absorption band located at 1030-1660 nm can be used for a passive saturable absorber Q switch of 1.3-1.6mum laser. The passive pulsed laser output of LD-end-pumped Nd:GdVO4 1.34mum laser was demonstrated for the first time by using the 0.5 at.% Co:LMA crystal as a saturable absorber Q switch. The maximum average output power of 500 mW was obtained under the pumping power of 25 W. The shortest pulse width, the largest pulse energy and the highest peak power were obtained to be 160 ns, 25.5muJ and 150 W, respectively.