A new scalable annular CO2 laser with high specific output power

被引:16
作者
Bethel, JW [1 ]
Baker, HJ [1 ]
Hall, DR [1 ]
机构
[1] Heriot Watt Univ, Dept Phys, Edinburgh EH14 4AS, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
carbon dioxide; laser; waveguide; annular;
D O I
10.1016/S0030-4018(97)00440-9
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A compact, annular waveguide CO2 laser is presented which uses a novel method of RF excitation to allow discharge length scaling and a non-interrupted optical path within the annular resonator. The laser has produced an output power of 465 W at 12.9% efficiency with an annular spacing of 1.5 mm. The electrode transmission line effects in annular lasers are analysed, and it is shown that the new excitation format produces a highly uniform discharge, resulting in a high specific output power of 16.8 kW m(-2). (C) 1998 Elsevier Science B.V.
引用
收藏
页码:352 / 358
页数:7
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