萨那芒特棱镜对不同束腰半径的单模高斯光束的影响

Effects of Semarmont Prism to Different Girding Radios Single-Mode Gaussian Beam

根据光在萨那芒特棱镜胶合介质层中的干涉效应,分析了萨那忙特棱镜对不同束腰半径单模高斯光束光强分布的影响;结果表明:对于某一波长的入射光,束腰半径越小,光强分布受棱镜的影响越明显,并且随着束腰半径的减小,高斯光束的形状也会发生变化.比较而言棱镜对透射o光的影响要大于e光,但从总体上看,当单模高斯光束束腰半径在(0.01 mm-1 mm)范围内取值时,棱镜无论对o光还是对e光光强的影响均小于1%,所以在要求不特别严格的应用中,可以忽略萨那忙特棱镜对单模高斯光束光强分布的影响.

Based on the interference effects happened at the cementing layer of Semarmont prism, the transmitting characteristics of different girding radios single-mode Gaussian beam passing through polarizing prism is analyzed. The results reveal that for single-mode Gaussian beam to the incident, the transmission polarizing light intensively changes in period by changing the girding radios of the beam, and the shape of transmitting beam will change by it, too. Comparatively, the effect of prism of o light is more than e light. In general, the effects on the transmitted Gaussian beam is less than 1 %, so in practice, if the requirement is not extraordinary strictly, the effects of Semarmont prism on the transmitting characteristics of Gaussian beam can be neglected.