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直流电纵向激励机械调Q CO_2激光器的动力学分析 被引量:3

Analysis of Kinetics of a Mechanical Q-Switched CO_2 Laser with Longitudinal DC Discharge
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摘要 用一种快速斩波器实现简单直流电纵向激励CO2激光的机械Q调制.产生了峰值功率为1~2kW、重复频率为740Hz、单脉冲宽度为200~300ns的激光脉冲.用六温度模型模拟该机械调QCO2激光器Q调制的动力学过程,分析了CO2分子分解为CO分子比率、腔内放电电子密度(放电电流)对输出脉冲强度的影响,并计算了Q转换输出脉冲线形、脉冲峰值功率及脉冲宽度,理论计算分析与实验结果相符. A fast chopper was used to set up a simple mechanical Q-switched CO2 laser with longitudinal DC discharge. The laser pulse with peak power 1 - 2 kW, repetition rate to 740 Hz, pulse width 200 -300 ns, was realized. The dynamical process of Q-switching for the simple mechanical Q-switched CO2 laser was simulated by a six-temperature model. The effects of the dynamical parameters such as the dissociation of CO2 molecules, the electron density in the cavity (the discharge current ) on the output laser intensity were reported. Q-switched output pulse shape, pulse peak power and pulse width were calculated. The theoretical analysis is well consistent with the experimental result.
出处 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2008年第1期115-119,共5页 Journal of Jilin University:Science Edition
基金 国家自然科学基金(批准号:10334010)
关键词 激光技术 脉冲CO2 激光器 机械调Q 六温度模型 laser technique pulsed CO2 laser mechanical Q-switch six-temperature model
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共引文献11

同被引文献67

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