Yb:YAG Slab Laser Amplifier

被引：0
|
作者：
Kuzin, D. A. [1 ]
Starobor, A. V. [1 ]
Kuznetsov, I. I. [1 ]
Palashov, O. V. [1 ]
机构：
[1] Russian Acad Sci, Fed Res Ctr, Gaponov Grekhov Inst Appl Phys, Nizhnii Novgorod 603950, Russia
来源：
BULLETIN OF THE LEBEDEV PHYSICS INSTITUTE | 2024年 / 51卷 / SUPPL 3期
基金：
俄罗斯科学基金会;
关键词：
Yb:YAG; high average power; slab laser; thermal effects; thermal lens; HIGH-POWER; AVERAGE; SYSTEM; CHAIN; MJ;
D O I：
10.3103/S106833562460089X
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A laser amplifier based on an active element in the shape of a Yb:YAG slab is developed. It combines the propagation of an amplified elliptical beam without internal reflections, the use of high-brightness diode pump channel combining, and a heat sink made of silicon carbide. Its laser characteristics and factors limiting the output pulse energy are studied. It is shown that the application of an active element with gradient doping ensures stable operation of the laser head at pump powers of similar to 0.5 kW. The use of signal radiation diverging along one axis compensates for the effect of reducing the output cross section of the amplified beam; as a result, a gain of G = 4 is ensured with a beam quality factor M-2 < 1.4.
引用
收藏
页码：S228 / S237
页数：10
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