Anisotropy in laser performance of Yb:GdCa4O(BO3)3 crystal

被引：17
|
作者：
Liu, Junhai [1 ]
Yang, Hongwei [1 ]
Zhang, Huaijin [2 ]
Wang, Jiyang [2 ]
Petrov, Valentin [3 ]
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] Max Born Inst Nonlinear Opt & Ultrafast Spect, D-12489 Berlin, Germany
来源：
APPLIED OPTICS | 2008年 / 47卷 / 29期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1364/AO.47.005436
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report distinct laser performance of Yb:GdCa4O(BO3)(3) crystals cut along different principal optical axes using an unpolarized diode pump. The continuous-wave (cw) laser oscillation generated with y-cut crystal is polarized either with E parallel to x or with E parallel to z depending on the output coupling (T) utilized; a specific T = 3% leads to a special situation in which the two orthogonal polarization states coexist oscillating at different wavelengths. The laser oscillation achieved with x- and z-cut crystals is also polarized, but with a fixed polarization of E parallel to z and E parallel to x, respectively. The most efficient laser operation is obtained with the y-cut crystal, generating a cw output power of 73.5 W at 1083-1085 nm with an optical-to-optical efficiency of 63%, the slope efficiency being as high as 84%. (C) 2008 Optical Society of America.
引用
收藏
页码：5436 / 5441
页数：6
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