国内半导体激光器研究及应用现状
毕业论文关键词：半导体激光器；泵浦固体激光器；材料加工
Research and Application of the domestic semiconductor lasers
Abstract：This paper describes the principle of the semiconductor laser structure, promoting the principles and applications of semiconductor lasers in several areas of laser ranging, laser developed missile tracking, laser warning, laser communication and the national economy, and the like. Semiconductor lasers in the military and industrial sectors have great use. It also describes the recent progress of the semiconductor laser, the consolidation of the wavelength range of wavelengths, and through it increased the distance, ultra-high-power semiconductor laser pumped solid-state lasers in the market has a very important role, they are primarily used in the processing of materials, printing and medical aspects traction in demand, semiconductor laser is developing in the direction of high average power, high beam quality, high efficiency, low production costs and a long service life. Research and development of semiconductor lasers are always closely linked with the military and civilian, the paper describes the use of a semiconductor laser material processing aspects, and its future prospects
Key words: Semiconductor laser; DPL ; Materials Processing
目 录
摘要 1
引言..
1.激光技术及发展 1
2.半导体激光器特性及原理 2
2.1基本原理 2
2.2半导体激光器工作的特性 3
2.3半导体激光器的调制特性 4
2.4半导体激光器的特点 4
3.半导体激光器的应用 5
3.1半导体激光器在激光光谱中的应用 5
3.2半导体激光器在光固化成型中的用途 5
3.3大功率半导体激光器的军事应用 6
3.4半导体激光器在医疗上的应用 7
3.5半导体激光器在数字通信中的应用 7
3.6半导体激光器在激光打印及印刷市场中的应用 8
4.半导体激光器的发展趋势 9
4.1半导体激光器的前沿—微碟激光器 9
4.2特殊半导体激光器在未来电视中的应用 9
4.3半导体激光器在未来的新趋势 9
5.结束语 11
参考文献 11
致谢 12
国内半导体激光器的研究及应用现状1. 激光技术及发展
激光技术最早出现在七十年代初期，是一种因为刺激产生辐射而强化的光。激光被广泛应用是因为它具有良好的单色性、较强的方向性、亮度高等优点。激光技术原理是当光遇到了某些晶体或原子等易受激发的粒子时，让它的原子的电子达到受激发的状态，当这些电子要返回到平静的低能量状态时，原子会射出光子，放出剩下的能量。然后它发出来的光子碰到其他的原子，能够激发更多的原子产生光子。这种光就叫做激光，这样的激光是单色光波，其频率范围是很窄的，并且在很窄的频率方向上具有高能量，所以使用聚焦的激光束可以打孔。激光，因为它们具有这个样子的功能，所以它具有很大的用途。