Anisotropy in spectroscopic and laser properties of Yb:Sr3La2(BO3)(4) disordered crystal

作者：Yuan, Hualei; Wang, Lisha; Ma, Yanjun; Dou, Xiaodan; Han, Wenjuan; Xu, Honghao; Liu, Junhai^*; Pan, Zhongben

来源：Optical Materials Express, 2017, 7(9): 3251-3260.

DOI：10.1364/OME.7.003251

• DOPED SR3Y2(BO3)(4) CRYSTAL
• SPECTRAL PROPERTIES
• THERMAL-PROPERTIES
• OPTICAL-PROPERTIES
• MU-M
• GROWTH
• OPERATION
• SR3LA2(BO3)(4)

We report, for the first time to our knowledge, on the polarized absorption and emission spectra and efficient laser action of the Yb: Sr3La2(BO3)(4) disordered crystal. The strongest absorption and emission occur at about 977 nm for polarization direction parallel to the crystallographic b axis, with the peak absorption and emission cross-sections amounting, respectively, to 1.95 x 10(-20) and 2.45 x 10(-20) cm(2). Efficient continuous-wave laser action is demonstrated with a-, b-, and c-cut crystal samples longitudinally pumped by a 976-nm diode laser, producing an output power of up to 8.2 W with an optical-to-optical efficiency of 32% with respect to incident pump power. Depending on the output coupling utilized, the laser action could exhibit a transition from single-polarization oscillation to dual-orthogonalpolarization oscillation at a certain pump level.

• 出版日期2017-9-1
• 单位中国工程物理研究院; 青岛大学