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首页> 外文期刊>American Journal of Mechanical and Industrial Engineering >A Comparative Study on Beam Divergence Angle and Wave Length Between Semiconductor Laser and Helium-Neon Laser
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A Comparative Study on Beam Divergence Angle and Wave Length Between Semiconductor Laser and Helium-Neon Laser

机译：半导体激光器和氦氖激光器的光束发散角和波长的比较研究

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摘要

In this experimental study, I have seen that a comparative study on semiconductor laser and Helium-Neon laser is presented using the experimental techniques and tried to compare the experimental value with that of the theoretical one. On this work the wave length and beam divergence angle of the two types of lasers up to ten number of trials in the three orders, starting from 20cm to 200cm, with an interval of 20cm for each order was measured and I found that in the first and second order in the two types of laser, the wave length and the divergence angle is greater for Helium-Neon laser than semiconductor laser, thus, from this it is possible to understand that semiconductor laser is highly directional, means that it has high intensity, whereas, in the third order the Helium-Neon laser is not visible but semiconductor laser is visible, which is one of the indicator of Helium-Neon laser is not highly directional. And again, I examine that the beam divergence angle and wave length can have inverse relationship for the two types of lasers, as we see from figures 3 and 4. Thus, we concluded that the experimental result is almost agreed with that of the theoretical one.
机译：在这项实验研究中，我看到使用实验技术对半导体激光器和氦氖激光器进行了比较研究，并试图将实验值与理论值进行比较。在这项工作中，两种类型的激光器的波长和光束发散角在从20cm到200cm的三个阶次中最多进行十次试验，每个阶次的间隔为20cm，我发现在第一个阶段中在这两种类型的激光中，二阶和二阶激光的波长和发散角对于氦氖激光器都比半导体激光器大，因此，由此可以理解半导体激光器是高度定向的，这意味着它具有高强度，但是，在三阶中，氦-氖激光器不可见，而半导体激光器可见，这是氦-氖激光器不是高度定向的指示之一。再一次，我检查了光束的发散角和波长对于这两种类型的激光器可以成反比关系，如图3和图4所示。因此，我们得出的结论是，实验结果与理论值几乎一致。 。

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