为了获取特种材料表面特有的激光散斑特征，建立了一套实验室内模拟远场测量系统。

In order to acquire the special character of laser speckle reflected by special material surface, a measurement system simulating far-field is established in the laboratory.

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激光远场光斑测量对描述激光束的远场性能，评价激光器以及系统的实际工作性能具有重要意义。

It is very important to measure the laser spot energy distribution in the field for describing the laser beam performances and evaluating the lasers and operational performances.

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因此，对远场激光传播特性的测量是光学系统光路设计的基础。

Hence, the measurement of the laser propagation characteristics in the far field is the basis for the optical design of optical systems.

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