400W Yb:YAG planar waveguide laser using novel unstable resonators

被引：7

作者：

Thomson, Ian J. ^{[1
]}

Baker, Howard J. ^{[1
]}

Wlodarczyk, Krystian ^{[1
]}

Trela, Natalia ^{[1
]}

Hall, Denis R. ^{[1
]}

机构：

[1] Heriot Watt Univ, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

SOLID STATE LASERS XIX: TECHNOLOGY AND DEVICES | 2010年 / 7578卷

基金：

英国工程与自然科学研究理事会;

关键词：

Planar waveguide laser; Ytterbium:YAG; Toroidal mirror; DIODE BARS;

D O I：

10.1117/12.842128

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A planar waveguide laser consisting of a 13mm x 12mm x 150 mu m Yb:YAG core with 1mm high sapphire claddings is edge pumped using two 450W diode stacks with custom aberration correcting phase-plates. A plano-concave resonator gives 400W average power in a low-order transverse, multi-longitudinal mode beam with 75% slope efficiency, comparable to other thin disk and slab lasers. Transverse beam quality is improved through use of novel mode selective toroidal laser-cut resonator mirrors, whilst lateral beam quality is improved through the use of an unstable resonator. Uniform gain with an amplification of 3-4 per pass shows promise for amplifier operation.

引用

页数：9

共 7 条

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