100 Hz repetition-rate 2.794 μm Cr,Er:YSGG passively Q-switched laser with Fe2+:ZnSe saturable absorber

A concave-convex resonator was used to compensate for the thermal focal length, which obviously realizes the high energy output of Cr,Er:YSGG lasers at 100 Hz pumped by a flash lamp. The maximum output energy of the concave-convex cavity is 62.3 mJ, which is 2.9 times the maximum with a plane-parall...

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Bibliographic Details
Published inInfrared physics & technology Vol. 122; p. 104087
Main Authors Xiong, Zhengdong, Jiang, Lingling, Cheng, Tingqing, Jiang, Haihe
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2022
Subjects
Cr,Er:YSGG
High repetition rate
Mid-infrared
Passive Q-switch
Passive Q-switch
Mid-infrared
High repetition rate
Cr,Er:YSGG
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Summary:A concave-convex resonator was used to compensate for the thermal focal length, which obviously realizes the high energy output of Cr,Er:YSGG lasers at 100 Hz pumped by a flash lamp. The maximum output energy of the concave-convex cavity is 62.3 mJ, which is 2.9 times the maximum with a plane-parallel cavity when the same energy is injected in free-running operation. A passively Q-switched 2.794 μm laser using a Fe2+:ZnSe saturable absorber was demonstrated in this research. The device produced single pulses of 4.3 mJ energy with a 107.6 ns pulse width and multi-pulses (5 pulses) with 20 mJ total output energy at 100 Hz.
ISSN:1350-4495
1879-0275
DOI:10.1016/j.infrared.2022.104087