A new type of fiber grating, claddingindex modulated fiber grating, is presented in this paper.
本文提出了一种新型结构的光纤光栅——包层折射率调制光纤光栅。
2
Through exposing the cladding photosensitive fiber to periodic ultraviolet, the new claddingindex modulated fiber grating can be formed.
新型包层折射率调制光栅可以由包层掺杂的光敏光纤经过侧面紫外曝光制成。
3
By the theory of ray optics, the bend losses of fiber as function of fiber parameters such as core index, claddingindex, core radius and bend radius are set up.