High energy (0.8 J) mechanically Q-switched 2.94 μm Er:YAG laser

被引：25

作者：

Karki, Krishna ^{[1
]}

Fedorov, Vladimir ^{[1
]}

Martyshkin, Dmitry ^{[1
]}

Mirov, Sergey ^{[1
]}

机构：

[1] Univ Alabama Birmingham, Dept Phys, CH310,1300 Univ Blvd, Birmingham, AL 35294 USA

来源：

OPTICS EXPRESS | 2021年 / 29卷 / 03期

关键词：

ER-YAG LASER; ABLATION;

D O I：

10.1364/OE.417301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a flashlamp pumped mechanically Q-switched (MQS) 2.94 mu m Er:YAG laser based on a spinning mirror with a highest output energy of 805 mJ at a pulse duration of 61 ns and 13 MW of peak power at 1 Hz repetition rate. This record output energy was achieved with the use of 300 mm long MQS Er:YAG laser cavity consisting of a 70% output coupler, 7 x 120 mm AR coated Er(50%):YAG crystal, and 4200 rad/s angular speed of the spinning mirror. The pulse jitter was also measured by using optical triggering and was smaller than 10 ns for 150 ns Q-switched pulses, which could be applicable to many laser applications where precise synchronization of pulses is required. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：4287 / 4295

页数：9

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