【作者】 沈炎龙； 周松青； 谌鸿伟； 黄珂； 栾昆鹏； 陶蒙蒙； 于力； 易爱平； 冯国斌；

【Author】 SHEN Yan-long;ZHOU Song-qing;CHEN Hong-wei;HUANG Ke;Kunpeng Luan;Tao Mengmeng;Yu Li;Yi Aiping;Feng Guobin;State Key Laboratory of Laser Interaction with Matter, Northwest Institute of Nuclear Technology;

【机构】 西北核技术研究所,激光与物质相互作用国家重点实验室；

【摘要】 报道了采用中心波长为975nm半导体激光器(LD)泵浦高掺铒氟化物双包层Er:ZBLAN光纤,并在谐振腔内插入调Q元件机械斩波器,获得了2.8μm激光主动调Q输出。通过控制适当泵浦功率,在没有脉冲分裂时,激光器在3.5k Hz重频条件下,获得了最大单脉冲能量84.5μJ,脉宽250.3ns,峰值功率超过300W的中红外激光脉冲输出。更多还原

【Abstract】 A high power actively Q-switched mid-infrared fiber laser at 2.8-μm waveband is demonstrated by employing a 975 nm laser-diode pumping a piece of heavily Er3+-doped ZBLAN double-clad fiber and a mechanical chopper into the cavity as the Q-switch. Output Characteristics at different pump powers and various repetition rates is investigated. The maximum pulse energy(without pulse spike) of 84.5μJ, pulse duration of 250.3ns and peak power of exceeding 300 W is obtained at a repetition rate of 3.5k Hz under a proper pump power.更多还原