In this paper, the relation between the structure of the chirped fibre grating and the parameters of the incident femtosecond pulse is described. Numerical calculations show that the chirped fibre grating has a broad Bragg reflection spectrum.

• 研究了该光栅结构与入射超短脉冲激光脉冲参数的关系 ；数值计算表明该光栅具有较大的Bragg反射带宽 .