Continuous wave and passively Q-switched Nd:Lu_(0.15)~- Y_(0.85)VO_4 laser with 885nm direct pumping

• 作 者: 李奇楠 赵斌 张韬 李瑞 刘相梅 郑亚辉 刘晓军
• 机 构: Department of Physics, College of Science, Qiqihar University,College of Chemistry, Fuzhou Universit
• 出 处: Optoelectronics Letters
• 发表日期: 2004年期
• 关键词: pumping switched repetition lasing transverse mirror relaxation locked Heidelber

The 885 nm direct pumping directly into the~4F_(3/2)emitting level of Nd~(3+)is applied on an Nd:Lu_(0.15)Y_(0.85)VO_4 crystal.The maximum output power of 2.8 W for continuous wave(CW)operation is obtained.For Q-switched operation,the maximum average output power is 1.2 W with pulse repetition of 23.69 kHz and pulse width of 35 ns at the pump power of 27.9 W.The high-quality fundamental transverse mode can be observed owing to the reduction of thermal effect for Nd:Lu_(0.15)Y_(0.85)VO_4 crystal by 885 nm direct pumping.

The 885 nm direct pumping directly into the ~ 4F_ (3/2) emitting level of Nd ~ (3+) is applied on an Nd: Lu_ (0.15) Y_ (0.85) VO_4 crystal.The maximum output power of 2.8 W for continuous wave (CW) operation is obtained. For Q-switched operation, the maximum average output power is 1.2 W with pulse repetition of 23.69 kHz and pulse width of 35 ns at the pump power of 27.9 W. The high-quality fundamental transverse mode can be observed owing to the reduction of thermal effect for Nd: Lu_ (0.15) Y_ (0.85) VO_4 crystal by 885 nm direct pumping.