非共振条件下高斯光束斜入射法布里—珀罗干涉仪的透射特性

Transmission characteristics after a Gaussian beam incidenting obliquely on a Fabry-Perot interferometer under non-resonant case

基于多光束干涉原理,研究了当高斯光束的载波频率与法布里—珀罗(F P)干涉仪的谐振频率存在偏差(即非共振)时,高斯光束斜入射F P干涉仪的透射特性。结果表明,与共振情况相比,非共振条件下透射光束的峰值强度及其所对应的位置、以及光斑的大小随入射角的变化都发生了显著的改变。

Based on the multi-beam interference principle, the transmission of a Gaussian beam after incidenting obliquely on a Fabry-Perot interferometer is investigated under the non-resonant case that the carrier frequency of a Gaussian beam deviates from the oscillation frequency of a Fabry-Perot etalon. The results show that compared with those obtained under the resonant case, variations of the peak intensity, the position of the peak intensity and the spot size of the transmitted beam with the input angle under the non-resonant case behave obviously different.