强激光与粒子束, 2014, 26 (9): 091001, 网络出版: 2014-09-15
微型化LD泵浦Er3+,Yb3+共掺磷酸盐玻璃被动调Q激光器
Miniature LD pumped passively Q-switched ErEr3+,YbEr3+ co-doped phosphate glass laser
激光二极管泵浦 Er3+/Yb3+共掺磷酸盐玻璃 Co2+:MgAl2O4晶体 微型化激光器 940 nm LD pumped Er3+ and Yb3+ co-doped phosphate glass Co2+:MgAl2O4 crystal miniature laser
摘要
报道了一种主要应用于激光测距的微型化激光二极管泵浦Er3+/Yb3+共掺磷酸盐玻璃被动调Q激光器。采用中心波长940 nm的二极管作为泵浦源,Er3+/Yb3+共掺磷酸盐玻璃作为增益介质,Co2+:MgAl2O4作为被动调Q晶体,通过优化增益介质和被动调Q晶体参数,获得了最佳的增益介质长度和被动调Q晶体初始透过率。当泵浦能量14 mJ,重复频率10 Hz,泵浦脉宽5 ms时,获得了单脉冲能量480 μJ,脉宽5 ns,峰值功率大于20 kW的激光输出,激光光束质量因子为1.2。
Abstract
A miniature diode pumped passively Q-switched Er3+and Yb3+ co-doped phosphate glass laser is reported. The center wavelength of pump source is 940 nm. A Co2+: MgAl2O4 crystal is used as a saturable absorber. When the pump energy is 14 mJ, stable Q-switched pulses are obtained at repetition frequency of 10 Hz and pump pulse width of 5 ms. The output pulse energy of laser is 480 μJ and pulse width is 5 ns . The wavelength of laser is 1535 nm. The peak power is higher than 20 kW and beam quality is 1.2.
郭猛, 惠勇凌, 王万祎, 姜梦华, 雷訇, 李强. 微型化LD泵浦Er3+,Yb3+共掺磷酸盐玻璃被动调Q激光器[J]. 强激光与粒子束, 2014, 26(9): 091001. Guo Meng, Hui Yongling, Wang Wanyi, Jiang Menghua, Lei Hong, Li Qiang. Miniature LD pumped passively Q-switched ErEr3+,YbEr3+ co-doped phosphate glass laser[J]. High Power Laser and Particle Beams, 2014, 26(9): 091001.
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