作　　者： ; ; ; (常进）;

机构地区： 武汉光电国家实验室

出　　处： 《光电子．激光》 2008年第11期1458-1462,共5页

摘　　要： 倾斜入射时滤光片的透射光会出现光路偏移以及光斑模场的形变,所以在测试制备的100GHz低偏振相关损耗的角度调谐滤光片时其透射光谱的插入损耗和波形的高斯化现象会随着入射角度的加大而迅速增加。根据薄膜矩阵理论建立模型模拟了透射模场的偏移变化,并设计和制备了一种动态补偿装置,在实验中证明该设计能在保持光准直器位置固定的情况下有效地减少透射波形的损耗和高斯化现象,使得角度调谐滤光片能达到理论设计中20nm的可调谐范围。 When testing the 100GHz angle-tuned filter with low polarization dependent loss,the insertion loss and Gaussian transformation of the transmission optical spectra will become more and more serious as the incident angle is increasing, which is because the transmission optical path and the transmission model field of the thin film filter will change. According to the theory of the thin film matrix,the theoretical analysis model is built up and the displacement change of the transmission model field is simulated, and a dynamic compensation fitting is also fabricated. The experimental results show that it can effectively reduce the insertion loss and the phenomenon of gauss process. Using the compensation fitting,the tunable range of the filter is at about 20 nm which is coincide with its theoretical design.

关 键 词： 薄膜物理学 窄带滤光片 倾斜入射 高斯化

领　　域： [理学] [理学]