半导体激光(红光)相干性的研究

The Coherence Research of Semiconductor Laser(Red)

通过实验研究分析了一种波长为６７０ｎｍ的半导体激光的相干性，证明这种激光器也可以作为一种相干光源加以利用．

The semiconductor lasers,which wave length is 670nm,are used in the aspect of light intensity measurement,such as laser alignment,laser distance detection,and so on.Many people consider that its coherence is very bad because of its large lighting dimension and bad monochromaticity,and so there are no exploited value in these aspects.But in this paper the coherence of the laser has practically been measured and the coherence of this kind of semiconductor laser is considered to be still good and it can be exploited and applied further from these experiments.