Experimental study of unstable resonator for high-power TEA CO2 laser

被引：0

作者：

Yang G. ^{[1
]}

Shao C. ^{[1
]}

Guo R. ^{[1
]}

Meng F. ^{[1
]}

Li D. ^{[1
]}

Guo L. ^{[1
]}

Guo J. ^{[1
]}

机构：

[1] State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences

来源：

Qiangjiguang Yu Lizishu/High Power Laser and Particle Beams | 2010年 / 22卷 / 10期

关键词：

Beam quality; Optical beam divergence; TEA CO[!sub]2[!/sub] laser; Unstable resonator;

D O I：

10.3788/HPLPB20102210.2478

中图分类号：

学科分类号：

摘要：

The experiments of unstable resonator were performed for compressing divergence angle through modifying a high-power stable resonator TEA CO2 laser. The virtual confocal positive branch was adopted to study the influences of structure parameters and mode volume on output energy and optical beam divergence for the unstable resonator. Twenty sets of mirrors with four magnifications and five mode volumes were designed and manufactured. In the same experimental conditions, the maximum pulsed energy of the unstable resonator is 14 J, which is 70% of that of the plano-concave stable resonator, but the divergence angle is just a quarter of the latter's.

引用

页码：2478 / 2482

页数：4

共 9 条

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