Efficient Yb:KGW lasers end-pumped by high-power diode bars

被引：37

作者：

Hellström, JE

Bjurshagen, S

Pasiskevicius, V

Liu, J

Petrov, V

Griebner, U

机构：

[1] Royal Inst Technol, Dept Phys, S-10044 Stockholm, Sweden

[2] Max Born Inst, D-12489 Berlin, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2006年 / 83卷 / 02期

关键词：

D O I：

10.1007/s00340-006-2171-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The laser performance of Yb:KGW under end-pumping with high-power diode bars has been investigated. In one configuration, the pump is delivered through an optical fiber yielding a symmetric but unpolarized pump spot. In the second configuration, the pump is delivered through an optical lens system yielding a polarized but asymmetric pump spot. Both configurations resulted in a maximum optical to optical efficiency of 47% and a maximum power of 12.4 W has been generated with the fiber coupled pump source. The output power was limited by crystal fracture, which occurred at an estimated temperature gradient of 1.2 x 10(5) K/m. Thermal lensing and laser tuning characteristics are also investigated.

引用

页码：235 / 239

页数：5

共 20 条

[1] Femtosecond thin-disk Yb:KYW regenerative amplifier [J].