摘要
根据速率方程,研究了二镜腔Nd:YAG双波长调Q激光的振荡机理.通过分析不同透过率下的竞争过程,研究了双波长激光振荡的特点.研究结果表明,在调Q过程中1319nm激光的调Q脉冲起振时间滞后于1064nm激光,并且其最终调Q脉冲来自调Q之后的第一个弛豫振荡尖峰,是该弛豫振荡抑制掉其他弛豫振荡后的结果.通过振荡机理分析,得到了双波长脉冲输出能量相当的透过率条件.
The oscillation mechanism of dual-wavelength Nd:YAG Q-switched laser with two-mirror resonator is studied on the basis of the rate equation. The characteristics of the dual-wavelength laser are discussed by analysing the competition process with different transmissivities. Results show that the oscillating time of the Q-switched pulse laser for 1319 nm laser is delayed relative to that of 1064 nm. The 1319 nm Q-switched laser is formed finally from the first relaxation oscillation spike after the Q-switch opening, i.e. it restrains the rest relaxation oscillation spikes. The transmissivity of relatively balanced output energy is theoretically obtained.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2009年第6期3909-3914,共6页
Acta Physica Sinica
基金
中国科学院福建物质结构研究所三期创新重大项目(批准号:SZD08001-4)
中国科学院知识创新工程资助的课题~~
关键词
双波长
调Q激光
速率方程
弛豫振荡
dual-wavelength, Q-switched laser, rate equation, relaxation oscillation