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光谱宽度
[光] spectral width
- 随着光束发散角和光谱宽度的增大，衍射效率逐渐减小。
In addition, diffraction efficiency of grating decreases gradually with increase of beam divergence and spectral width. - 当光谱宽度较窄时，实现多路光束较高的合成效率是可行的，这为高能激光的获得提供了一种确实可行的方法。
The results show that the high spectral beam combining efficiency for more beams can be obtained by this method, which provides a doable way for high power laser. - 由分析得到，对于确定的光源光谱宽度，波导端面反射率只有取合适的值，才能取得最灵敏的调制效果。
By analysis it is shown that the maximal modulation sensitivity comes from an appropriate end reflection coefficients of OWFPM for a certain light source spectrum width.
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