摘要
建立了双包层调Q光纤激光器的速率方程,并利用一个全光纤化的声光调Q光纤激光器作为种子源,双包层掺镱保偏光纤作为增益介质,研制了一个全光纤化的高功率线偏振掺镱脉冲光纤激光器。在泵浦功率38.4 W,偏振种子激光功率0.6 W,重复频率40 kHz,脉冲宽度为30 ns时,获得了偏振激光输出29.8 W,偏振消光比大于10 dB。在高功率输出时,激光光束质量因子(M2)达到了1.32。
Based on the rate equations, a numerical model of double clad Q-switched fiber laser was built, and the all fiberized high power linear polarized pulsed ytterbium-doped fiber laser was developed by using a fiberized acousto-optic Q-switched fiber laser as the seed source, a double clad ytterbium-doped fiber as the gain medium. In the pump power of 38.4 W, repetition rate of 40 kHz, pulse duration time of 30 ns, the laser delivered a linearly polarized pulsed emission output with an average power of 29.8 W. Its polarization extinction ratio was greater than 10 dB, and the beam quality factor （M2） was 1.32.
出处
《红外与激光工程》
EI
CSCD
北大核心
2014年第2期350-354,共5页
Infrared and Laser Engineering
关键词
线偏振
脉冲掺镱光纤激光器
全光纤化
linear polarization
pulsed ytterbium-doped fiber laser
all fiberized
