摘要
研究了一种微小型多通道径向平板阵列CO_2激光器的设计方案。该方案首次将稳定腔结构应用在多通道径向平板阵列结构的射频激励CO_2激光器中,腔型结构灵活,可根据实际需要进行参数选择。文中以三环复曲面结构为例,应用矩阵光学的相关理论对光束传输特性进行了分析和模拟。结果表明:在10kW,125MHz射频源激励,气体混合比例He:N_2:CO_2=3:1:1(添加5%的Xe),压强95torr的条件下,近场可获得24条光斑半径0.1cm左右的高斯光束,远场合并为一束。预计输出功率为1kW。该装置电极尺寸约为30cm×3cm×1cm(1×h×ω),总重量约为50kg。相对于其他腔体形状的多通道射频激励CO_2激光器,本方案为高斯光束输出,功率高、结构紧凑、体积小、重量轻、为实现CO_2激光器件的微小型高功率提供了一条新途径,具有重要的研究和应用价值。
A design scheme of the compact multi channel radial array CO2 laser is described. Stable resonator is firstly applied to multi-channel radial array. The symmetrical construction provides wide flexibility to meet the expectation of practice application. The optical resonator is presented and investigated based on the theory of matrix optics. The characteristics of propagation and output have been analyzed and simulated as well. The results show that this lkW machine,only 9cm in diameter, about 30cm long and weight 50Kg would obtaine 24 fundamental mode distribution of Gaussian beams which has a spot radius of 0. 1cm respectively. It may be a new way for reducing unit size and applications of CO2 laser.
出处
《应用激光》
CSCD
北大核心
2009年第2期139-142,153,共5页
Applied Laser
