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Fig. 16. (a) Spectral broadening factor N as functions of nonlinear phase shift for Gaussian and Lorentz-shaped pulses；(b) spectral broadening slope as a function of spectral profile coefficient m of the pulse；(c) RMS bandwidths for the output pulse of YDFA-2 as functions of the pulse energy when the controlling temperatures of the FBG notch filter are at 20 ℃ (green triangle)，30 ℃ (red circle) and 40 ℃ (black rectangle)，respectively （a）高斯和洛伦兹形脉冲的光谱展宽斜率N与非线性相移 之间的关系；（b）光谱展宽斜率与脉冲光谱波形系数m之间的关系；（c）不同FBG陷波滤波器控制温度下，YDFA-2输出脉冲RMS谱宽与能量之间的关系，其中绿色三角、红色圆形和黑色矩形分别对应于20，30和40 ℃的控制温度

Fig. 17. [in Chinese]