②随着啁啾系数增大，透射谱带宽增大，透射率降低，滤波性能变坏；
The transmission spectrum bandwidth increases with the chirp parameter, while the transmission decreases, which leads to worse filter feature;
啁啾系数的大小和符号对双曲正割脉冲光束空间强度的分布有不同的影响。
The sign of the chirp also affects the spatial intensity distribution of the ultrashort hyperbolic secant pulsed beams.
系统的输出信号的偏振度还随着信号原始啁啾系数绝对值的增大而减小，但与啁啾系数的符号无关。
And it decreases also with the increase of absolute value of the initial pulse chirp coefficient, but has no relation with the sign of chirping coefficient.
利用耦合模方程，对具有不同耦合系数的线性啁啾光纤光栅的色散特性进行了理论和数值分析。
The dispersion of linearly chirped fiber gratings with different coupling profiles is studied theoretically and numerically using coupling mode equations.
针对光栅不同的耦合系数分布，数值分析了分布耦合系数对线性啁啾光栅频率响应特性的影响。
Frequency response characteristics of linearly chirped fiber gratings with different distributed coupling coefficients have been analyzed numerically.
当预啁啾与五阶非线性系数同(异)号时，总啁啾增加(减小)。
When the initial chirp of the pulse is of same (opposite) sign as that of quintic nonlinearity coefficient, the whole chirp increases (decreases).
当预啁啾与五阶非线性系数同(异)号时，总啁啾增加(减小)。
When the initial chirp of the pulse is of same (opposite) sign as that of quintic nonlinearity coefficient, the whole chirp increases (decreases).
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