中国物理B ›› 2013, Vol. 22 ›› Issue (8): 84207-084207.doi: 10.1088/1674-1056/22/8/084207
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
郑耀辉, 周海军, 王雅君, 邬志强
Zheng Yao-Hui (郑耀辉), Zhou Hai-Jun (周海军), Wang Ya-Jun (王雅君), Wu Zhi-Qiang (邬志强)
摘要: We observe the phenomenon of priority oscillation of the unexpected σ-polarization in high-power Nd:YVO4 ring laser. The severe thermal lens of the σ-polarized lasing, compared with the π-polarized lasing, is the only reason for the phenomenon. By designing a wedge Nd:YVO4 crystal as the gain medium, the unexpected σ-polarization is completely suppressed in the entire range of pump powers, and the polarization stability of the expected π-polarized output is enhanced. With the output power increasing from threshold to the maximum power, no σ-polarization lasing is observed. As a result, 25.3 W of stable single-frequency laser output at 532 nm is experimentally demonstrated.
中图分类号: (Diode-pumped lasers)