摘要
基于二极管泵浦Nd:LaMgAl_(11)O_(19)无序晶体激光器实现了被动调Q激光以及脉冲幅度混沌激光的输出。当泵浦功率在4.8~8.6 W范围内时,激光器运转在被动调Q状态;当泵浦功率为8.6 W时,调Q激光的平均输出功率为613 mW、重复频率为157.1 kHz、脉冲宽度为2.2μs。当泵浦功率增加到8.7~10.5 W范围内时,输出激光的脉冲幅度呈不规则随机分布现象;通过分析脉冲峰值序列的自相关曲线、相位图、功率谱、随机直方图,判定激光器运转在脉冲幅度混沌状态;当泵浦功率功率为10.5 W时,脉冲幅度混沌激光的平均输出功率为814 mW。
A passively Q-switched state or a pulse amplitude chaos output state are experimentally realized based on a diode-pumped Nd:Nd:LaMgAl_(11)O_(19) disorder crystal laser.Experimental results indicate that when the pump power is in the range of 4.8~8.6 W,the Nd:LMA laser operates at a Q-switched state.For a pump power of 8.6 W,the average output power,repetition frequency,pulse width are about 613 mW,157.1 kHz,and 2.2μs,respectively.When the pump power is in the range of 8.7~10.5 W,the pulse amplitudes of the Nd:LMA laser present irregular and random distributions,which are judged as chaos through analyzing the autocorrelation curve,phase portrait,power spectrum,and stochastic histogram of the pulse-peak time series.For a pump power of 10.5 W,the average output power arrives at about 814 mW.
作者
高子叶
夏光琼
邓涛
林晓东
唐曦
樊利
吴正茂
GAO Ziye;XIA Guangqiong;DENG Tao;LIN Xiaodong;TANG Xi;FAN Li;WU Zhengmao(School of Physical Science and Technology,Southwest University,Chongqing 400715,China;School of Mathematics and Statistics,Southwest University,Chongqing 400715,China)
出处
《光子学报》
EI
CAS
CSCD
北大核心
2021年第3期62-70,共9页
Acta Photonica Sinica
基金
National Natural Science Foundation of China(Nos.61575163,61775184,61805205)
China Postdoctoral Science Foundation(No.2018M633303)
Chongqing Special Postdoctoral Science Foundation(No.XmT2018044)
Fundamental Research Funds for the Central Universities(No.XDJK2018C079)。
