光胶晶体激光器效率和稳定性研究及在煤矿监测中应用

发布时间：2018-01-16 14:33

本文关键词：光胶晶体激光器效率和稳定性研究及在煤矿监测中应用　出处：《中国矿业大学（北京）》2014年博士论文　论文类型：学位论文

【摘要】：本论文主要研究用于矿山测量的激光光源。矿山测量是矿山建设时期和生产时期的重要一环。在矿山测量中，光学测量系统的应用越来越广泛，如：激光指示、瓦斯监测、巷道断面测量、光学人员定位等。激光具有方向性、单色性、相干性好，是光学测量的理想光源。在巷道断面测量和光学人员定位中，只有采用激光才有可能实现，，普通光源是不可能的。小功率光胶晶体绿光激光器具有结构紧凑、效率高、寿命长、能够获得高功率和高光束质量输出，便于携带，适合作为矿山中光测系统的光源。本文围绕如何提高泵浦效率、保证输出功率的稳定性方面，做了大量工作。基于原理出发，分析了泵源的特性，得出泵源影响泵浦效率的三个主要因素；设计了最优的耦合透镜；并深入探索了光胶晶体温度特性，提出三段温度光胶晶体筛选法，能快速有效地挑选高品质光胶晶体。
[Abstract]:This paper mainly studies the laser light source used in mine survey. Mine survey is an important link in mine construction and production period. In mine survey, optical measurement system is used more and more widely, such as laser indication. Gas monitoring, roadway cross-section measurement, optical personnel positioning, etc. Laser is an ideal light source for optical measurement because of its directional, monochromatic and good coherence. It is only possible to use laser, ordinary light source is impossible. Low power photogel crystal green laser has compact structure, high efficiency, long life, and can obtain high power and high beam quality output. It is easy to carry and suitable as the light source of light measurement system in mine. This paper has done a lot of work on how to improve pump efficiency and ensure the stability of output power. Based on the principle, the characteristics of pump source are analyzed. Three main factors affecting pump efficiency are obtained. The optimal coupling lens is designed. The temperature characteristic of photoglue crystal is deeply explored, and the three-stage temperature photogel crystal screening method is put forward, which can select high quality photoglue crystal quickly and effectively.
【学位授予单位】：中国矿业大学（北京）
【学位级别】：博士
【学位授予年份】：2014
【分类号】：TD175;TN248

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