High-energy Q-switched operation of a fiber-laser-pumped Er:YAG laser

被引：0
|
作者：
J. W. Kim
J. K. Sahu
W. A. Clarkson
机构：
[1] University of Southampton,Optoelectronics Research Centre
[2] Hanyang University,Department of Applied Physics
来源：
Applied Physics B | 2011年 / 105卷
关键词：
Pump Power; Incident Pump Power; Dielectric Coating; High Pump Power; Input Coupler;
D O I：
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中图分类号：
学科分类号：
摘要：
A high-energy Q-switched Er:YAG laser in-band pumped by an Er,Yb co-doped fiber laser is reported. A simple two-mirror multi-mode resonator incorporating an electro-optic Q-switch and a multi-Brewster-plate polarizer was employed, together with a simple compensation scheme to reduce the depolarization loss due to thermally induced stress birefringence in the Er:YAG crystal at high pump powers. The laser yielded Q-switched pulses at 1617 nm with 30.5-mJ pulse energy and <20-ns pulse duration (FWHM) at 20-Hz repetition rate, corresponding to a peak power of >1.5 MW for 55 W of pump power at 1532 nm. The prospects for further improvement in Q-switched performance are discussed.
引用
收藏
页码：263 / 267
页数：4
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