半导体泵浦铷蒸气激光器出光实验  

Experimental investigations of diode pumped rubidium vapor laser

作　　者：徐程[1,2] 谭荣清[1] 李志永[1,2] 李琳[1,2] 

机构地区：[1]中国科学院电子学研究所高功率气体激光技术部,北京100190 [2]中国科学院大学,北京100049

出　　处：《强激光与粒子束》2013年第7期1657-1660,共4页High Power Laser and Particle Beams

摘　　要：针对中心波长780nm的商用连续波半导体激光器,使用斩波器将连续激光变为脉冲输出形式,用2400line/mm的平面全息光栅搭建Littrow外腔将线宽压窄至0.2nm以下。采用透镜组对线宽压窄后的半导体激光进行光束整形,半导体激光经线宽压窄和光束整形后,经透镜聚焦进长约8mm的铷蒸气泡进行半导体泵浦碱金属激光实验。首次出光得到17.5mW的基模线偏振铷激光;在最新的改进实验中,半导体泵浦铷激光输出功率已达到2.8W。A chopper was used to change a diode bar with a center wavelength of 780 nm from continuous laser to pulsed la ser, and a Littrow external cavity was build with a 2400 1/mm plane grating to narrow the linewidth of the diode laser to less than 0.2 nm. Then the diode laser was shaped by a lens group. After the linewidth narrowing and beam shaping, the laser was focused to a Rb vapor cell with a length of 8 mm. In that diode pumped alkali vapor laser system, a linearly polarized fundamental mode Rb laser with a peak power of 17.5 mW was obtained. In the latest experiment, we obtained a 2.8 W Rb laser in the improved di ode pumped rubidium vapor laser system.

关 键 词：半导体泵浦碱金属蒸气激光器 铷激光 线偏振 线宽压窄 

分 类 号：TN248.2[电子电信—物理电子学]