The method of double-filtering has provided a new way of improving the spectral resolution of AOTF effectively.
二次滤波法为提高声光可调滤波器的光谱分辨率开辟了新途径。
参考来源 - 基于超光谱成像系统的声光可调滤波技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The spectral resolution is one of the key index for evaluating the performance of the acoustooptic tunable filter.
光谱分辨率是评价声光可调谐滤波器性能的主要指标之一。
It shows that external vibration will result in bad lineshape, large linewidth, and dispersive effect, thus reduce the spectral resolution.
研究结果表明：外界振动会使谱图的线形变差、线宽增大和相位扰乱，从而降低谱图的分辨率。
The conclusion shows that the both must observe free spectral area, but the spectral resolution of bur method is twice as high as classical one in the same conditions.
其结论是：二者都必须遵守自由光谱范围。但在相同条件下，我们方法所能达到的分辨本领要比经典方法提高一倍。
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