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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.
According to the rate equation, the oscillation mechanism of two-wavelength Nd: YAG dual-wavelength Q-switched laser is studied. By analyzing the competitive process under different transmission rates, the characteristics of dual-wavelength laser oscillation are studied. The results show that during the Q- The Q-switched pulse of 1319nm laser lags behind the 1064nm laser and its final Q-switched Q-pulse comes from the first relaxation peak after Q-relaxation, which is the result of the relaxation of the relaxation relaxation by other relaxation oscillations. Through the mechanism analysis, the equivalent transmittance of dual-wavelength pulse output was obtained.