Laser performance of disordered Yb:Ca3(NbGa)2-xGa3O12 crystal under diode pumping at 974-976 nm

被引：20

作者：

Liu, J. ^{[1
]}

Yang, H. ^{[1
]}

Zhang, H. ^{[2
]}

Mateos, X. ^{[3
]}

Petrov, V. ^{[4
]}

Wang, J. ^{[2
]}

机构：

[1] Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[3] Univ Rovira & Virgili, Tarragona 43007, Spain

[4] Max Born Inst Nonlinear Opt & Ultrafast Spect, D-12489 Berlin, Germany

来源：

LASER PHYSICS LETTERS | 2008年 / 5卷 / 12期

关键词：

Yb laser; disordered crystal; Yb:CNGG; laser operation;

D O I：

10.1002/lapl.200810083

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Efficient continuous-wave (CW) laser operation is demonstrated at room temperature with disordered Yb:Ca-3(NbGa)(2-x)Ga3O12 crystal by diode pumping at 974-976 nm. With 2.0 W of pump power absorbed in a 1.5 mm thick crystal, a CW output power of 0.62 W is generated, resulting in an optical-to-optical efficiency of 31%, while the slope efficiency amounts to 50%. Upon increasing the pump power to a high level, a transient process takes place, in which the output power decreases continuously towards its stationary value. [GRAPHICS] Relationship between P-oul and P-abs measured in the transient process of power reduction, giving rise to a slope efficiency of eta = 60%

引用

页码：874 / 878

页数：5