Effects of dispersion decreasing and loss on Transmission of Bragg solitons in fiber Bragg gratings is analyzed by simulating numerically the transform of Bragg solitons.

• 结果表明，光栅色散渐减使脉冲的峰值增大，光栅损耗使脉冲展宽，两者对布拉格孤子在光纤光栅中的传输具有互补性，即两者对布拉格孤子的传输作用相反。