小型化高能输出TEA CO2激光器的实验研究

报道了一种小型高能输出横向激励大气压(TEA)CO2激光器.该激光器的主放电电极锆青铜材料制作,采取紧凑式Ernst电极,加大电极间距,增大了激活区体积.使用火花阵列预电离方式,有利于主放电均匀、稳定,且不易产生弧光.低重复频率下,自由振荡情况下的输出能量可达到2.5J.使用单片机控制的步进电机驱动光栅进行调谐,调谐后10P(20)谱线多模输出能量可达到1.2J,10P(20)谱线输出脉冲宽度为90ns.

Research of Miniature TEA CO2 Laser with High level Output

A miniature transversely excited atmospheric pressure (TEA)CO2 laser with high output level is reported.The main electrodes of the laser are made of zirconium bronze. The electrodes take the form of Ernst, with bigger space between them, as a result of which the volume of activation area is increased. The spark array preionization makes the discharge even and stable, wiping off the arc. At low repetition rate, the output energy can be as high as 2.5J under the circumstance of free oscillation. Tuning mechanism consists of diffraction grating, trigger controller and high frequency stepping motor of monolithic micro processor control. The energy of multimode of 10P(20) line is 1.2J and the width of the light pulse is 90ns.