本科毕业论文
题 目：半导体激光器的原理及应用 院 （部）： 理学院 专 业： 光信息科学与技术 班 级： 光信071 姓 名： 张士奎 学 号： 2007121115 指导教师： 张宁玉
完成日期： 2010年10月21日
山东建筑大学毕业论文
目录
摘要·····························································II ABSTRACT·························································IV 1前言·····························································1
1.1光纤传感器技术及发展··········································1
2光纤传感器的发展历程········································3
2.1光纤传感器的发展简史········································3 2.2光纤传感器的原理及组成·······································4 2.2.1基本原理···················································4 2.2.2光纤传感器的基本组成·····································5 2.2.3光纤传感器的特点·····································6 2.3光纤传感器的研究领域·········································7
3光纤传感器的分类及研究方向···································14
3.1荧光光纤传感器··································14 3.2分布式光纤监测技术·································15
3.3光纤传感器在未来的新趋势···········································15
4光纤传感器的应用············································8
4.1半导体激光器在激光光谱学中的应用·······························8 4.2半导体激光器在光固化快速成型中的应用··························8 4.3大功率半导体激光器的军事应用···································9 4.4半导体激光器在医疗上的应用····································10 4.5半导体激光器在数字通信中的应用·······························12 4.6半导体激光器在激光打印及印刷市场中的应用······················13
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山东建筑大学毕业论文
结 论····························································17 致 谢····························································18 参考文献·························································19
II
山东建筑大学毕业论文
摘 要
激光技术自1960年面世以来得到了飞速发展，作为激光技术中最关键的器件激光器的种类层出不穷，这其中发展最为迅速，应用作为广泛的便是半导体激光器。
半导体激光器的发展迅速,以其独特的性能及优点获得了广泛的应用. 本文介绍了半导体激光器的原理、结构、进展。还介绍了半导体激光器在激光测距、激光引信、激光制导跟踪、激光瞄准和告警、激光通信、光纤陀螺以及国民经济等各个领域中的应用。大功率半导体激光器在军事领域和工业领域有着广泛的应用。本文还介绍了大功率半导体激光器最新研究进展,着重于在提高可靠性、提高功率转换效率、波长稳定、拓展波长范围等方面所取得的进步,目前,高功率半导体激光器的主要市场是泵浦固体激光器、材料加工、印刷业和医学应用等领域。在需求牵引下,高功率半导体激光正在向高平均功率、高功率密度、高光束质量、高效率、低成本和长寿命方向发展。半导体激光器的研究和开发始终与军用和民用市场紧密相联,本文对目前大功率半导体激光器在材料加工领域中的直接应用进行了介绍,并展望了其发展趋势。
半导体激光器是以一定的半导体材料做工作物质而产生受激发射作用的器件.基于半导体激光器体积小、寿命长，并可采用简单的注入电流的方式来泵浦其工作电压和电流与集成电路兼容。通过采用先进的工艺和技术,新型高功率半导体激光器将层出不穷。
关键词：激光技术；半导体激光器；军事应用；医学应用；半导体激光
器特点；发展新趋势
III
山东建筑大学毕业论文
Principle and Application of Semiconductor Laser
ABSTRACT
Laser technology has been the rapid development of available since 1960，Laser technology as the most critical types of laser devices emerging 。as one of the fastest growing, Applications widely is Semiconductor lasers.
The development of semiconductor lasers is rapidly. Its unique properties and advantages of access to a wide range of applications. This article describes the principles of semiconductor lasers, structure, progress. Also introduced the semiconductor laser in the laser ranging, laser fuses, laser-guided tracking, targeting and laser warning, laser communications, fiber optic gyroscope and the national economy and other fields of application. High-power semiconductor lasers in the military field and industrial field has a wide range of applications .It also introduces the latest progress of high power semiconductor lasers, focused on improving the reliability, improve power conversion efficiency, wavelength stability, wavelength range and so expand the progress made. Currently, the main high power semiconductor laser pumped solid-state laser market, materials processing, printing and medical applications in the field.. Traction in demand, the high-power semiconductor laser is the high average power, high power density, high beam quality, high efficiency, low cost and long life direction. Semiconductor laser research and development has always been closely linked with military and civilian markets, this article on the current high-power semiconductor lasers in materials processing in the field of direct application are introduced, and forecasts the development trend.
Semiconductor lasers based on semiconductor materials to do the work of certain substances that produce effects of stimulated emission devices. Semiconductor lasers based on size, long life, and can use a simple way to pump into the current operating voltage and current is compatible with the integrated circuit,. By using advanced techniques and technologies, new high-power semiconductor laser will be endless
IV