基于单模光纤的可调谐声光滤波器

Acousto-optical Tunable Filters Based on Single Mode Fibers

从模式转换效率、带宽和波长调谐范围等角度分析了普通单模光纤中声光模式转换的性质 ,并在实验上实现了插入损耗小于 0 1dB ,带宽小于 1nm ,调谐范围大于 30nm的光纤声光滤波器。

The acoustooptical mode conversion efficiency, filtering bandwidth and wavelength tuning range of the acoustooptical tunable filters based on single mode fibers were analyzed theoretically. One kind of such filters was realized experimentally, having 30 nm tuning range. The insertion loss mainly includes joint loss and welding point loss because this filter is of all fiber structure.