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在光信息综合实验中,在分析氦氖激光器的优缺点的基础上,阐述了半导体激光器的显著优点以及存在的一些局限性。利用实验室现有的器件,引导学生对半导体激光器进行了光束准直和整形以提高激光器的性能,并用已优化的半导体激光器作为光源进行了全息光栅和全息透镜的制备以及电光调制和液晶光阀等实验。结果表明,性能改善的半导体激光器完全可以取代氦氖激光器,可满足光信息综合实验的要求。在整个设计制作过程中,培养了学生分析问题和解决问题的能力。
Based on the analysis of the advantages and disadvantages of the He-Ne laser, the advantages and disadvantages of the semiconductor laser are expounded in the experiment of optical information synthesis. The use of existing laboratory devices, to guide students to the semiconductor laser beam collimation and shaping to improve the performance of lasers, and optimized semiconductor lasers as a light source for the preparation of holographic gratings and holographic lenses and electro-optic modulation and liquid crystal light valve Other experiments. The results show that the performance improvement of the semiconductor laser can completely replace the He-Ne laser, optical information can meet the requirements of the experiment. Throughout the design process, students develop the ability to analyze and solve problems.