双模气体激光中的背散射和饱和效应

BACKSCATTERING AND SATURATION EFFECTS IN TWO MODE GAS LASER

本文从理论上分析了双向环形气体激光中背散射和饱和效应的作用,导出了同相背散射时定态双模激光强度分布函数的解析解,求出了强度相关的有效本征值。与实验测量相比较,具有背散射的全饱和激光模型与实验吻合得最好,而其他激光模型偏差较大。

The full saturation effects of a bidirectional ring gas laser with backscattering are studied theoretically. The analytic expression of the two mode steady state laser intensity distribution function is derived when there is in-phase backcoupling. The effective eigenvalue of the intensity autocorrelation is calculated. Compared with experimental measurements, excellent agreement between full saturation theory with backscattering and experiments is obtained. Other laser theories lead to relatively large errors.