Diode-laser edge-pumped Nd:YAG/YAG lens-shaped composite laser

被引：7
|
作者：
Grigore, Oana Valeria [1 ,2 ]
Croitoru, Gabriela [1 ,2 ]
Dascalu, Traian [1 ]
Pavel, Nicolaie [1 ]
机构：
[1] Natl Inst Laser Plasma & Radiat Phys, Lab Solid State Quantum Elect, Magurele 077125, Ilfov, Romania
[2] Univ Bucharest, Doctoral Sch Phys, Bucharest, Romania
来源：
OPTICS AND LASER TECHNOLOGY | 2017年 / 94卷
基金：
欧盟地平线“2020”;
关键词：
Lasers and laser optics; Lasers; diode pumped; neodymium; Pumping; THIN-DISK LASER; CONTINUOUS-WAVE; HIGH-POWER;
D O I：
10.1016/j.optlastec.2017.03.018
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A laser configuration made of a thin-disk Nd:YAG/YAG composite medium that consists of a circular Nd: YAG core bonded by diffusion to a circular undoped YAG and that has the shape of a plane-concave lens is presented. The pump is done through the undoped YAG edge, in a three-fold scheme, directly from the diode-laser optical fibers. Such a laser was built employing a Nd:YAG/YAG ceramics made of a 1.0-at.% Nd:YAG core of 2.0-mm diameter surrounded by a 10 mm in diameter YAG. The thickness was 180 mu m at the center of Nd:YAG and 500 mu m at the YAG edge. The Nd:YAG/YAG medium was attached to a water-cooled copper finger. At 2 Hz repetition rate the laser yielded pulses at 1.06 mu m with energy E-p = 31.8 mJ under the pump at 807 nm with total energy E-pump =114.6 mJ; the slope efficiency was 0.31. A decrease of laser pulse energy with the repetition rate was observed. This indicates that a better thermal management, which could be made through metallic bonding of Nd:YAG/YAG to the cooling system, is necessary. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：86 / 89
页数：4
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