非均匀增益对激光模式的影响

EFFECT OF INHOMOGENEITY GAIN ON MODE OF LASER

利用快速傅里叶变换 ( FFT)法对有正支共焦非稳腔、流动增益介质的化学氧碘激光器 ( COIL )与二氧化碳激光器的模场进行了数值模拟 ,在此基础上分析了介质的非均匀增益对激光模式的影响 ,为新的腔型设计和光束质量的改善提供了依据 .

Fast Fourier transform method(FFT) is used to simulate mode of chemical oxygen iodine laser(COIL) and CO 2 laser with a positive branch confocal unstable resonator and flowing gain medium.At the same time,it analyzes the effect of inhomogeneity gain on mode of laser and provides evidences for designing new resonator models and improving beam quality.