Passively Q-switched Pr:YLF laser with a Co2+:MgAl2O4 saturable absorber

被引：42

作者：

Demesh, Maxim ^{[1
]}

Marzahl, Daniel-Timo ^{[2
]}

Yasukevich, Anatol ^{[1
]}

Kisel, Viktor ^{[1
]}

Huber, Guenter ^{[2
,3
]}

Kuleshov, Nikolay ^{[1
]}

Kraenkel, Christian ^{[2
,4
]}

机构：

[1] Belarusian Natl Tech Univ, Ctr Opt Mat & Technol, 65 Nezavisimosti Ave,Bldg 17, Minsk 220013, BELARUS

[2] Univ Hamburg, Inst Laser Phys, Luruper Chaussee 149, D-22761 Hamburg, Germany

[3] Univ Hamburg, Hamburg Ctr Ultrafast Imaging, Luruper Chaussee 149, D-22761 Hamburg, Germany

[4] Leibniz Inst Crystal Growth, Ctr Laser Mat, Max Born Str 2, D-12489 Berlin, Germany

来源：

OPTICS LETTERS | 2017年 / 42卷 / 22期

关键词：

NONLINEAR ABSORPTION; ORANGE; RED;

D O I：

10.1364/OL.42.004687

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on a 2 omega-OPSL-pumped passively Q-switched Pr3+:LiYF4 laser operating at the wavelengths of 523, 607, and 640 nm. For this, we utilized a Co2+-doped MgAl2O4 ( MALO) crystal as a saturable absorber in the visible range for the first time, to the best of our knowledge. In the green spectral region, the pulse duration was 210 ns with a pulse energy of 3.6 mu J and a repetition rate of 125 kHz. The minimum pulse duration of 87 ns at the highest pulse energy of 8.6 mu J was obtained at a repetition rate of 110 kHz at 607 nm. The highest Q-switched average laser power of 1.4 W was obtained at an absorbed continuous-wave pump power of 3.3 W with a slope efficiency of 47% at 640 nm. Absorption saturation measurements with Co:MALO were performed, and ground and excited state absorption cross sections in the visible spectral range were determined. (C) 2017 Optical Society of America

引用

页码：4687 / 4690

页数：4

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