摘要： 半导体光源照明技术在当今早已成照明行业的翘楚，随着科技的进步发展，其性能必将有显著的提高，应用范围也越来越广。激光光纤照明作为其中一部分，有着极高的实用价值。本文将从光源和光纤两方面去分析，阐述半导体激光器的发光原理和光纤的耦合条件，然后通过单透镜耦合的方式，分别使用红光、绿光激光器，塑料光纤和多模石英光纤进行原理性研究探讨激光光纤照明的可行性。得出了影响激光光线照明效率的各种因素。70699

毕业论文关键词： 半导体光源；光导纤维；耦合效率；光纤照明

Discussion of fiber optic lighting and the coupling efficiency to the semiconductor light source

Abstract: The Technology of Using Semiconductor light source for illuminating has become the best choice in today's lighting industry, with the progress and evolution of the technology, its performance will have a significant rise, application scope is also more and more widely.As a part of it，the laser fiber optic lighting, has a high practical value.This article will analysis the applicability of laser fiber optic lighting technology from two aspects,light source and optical fiber,elaborated the theory of semiconductor laser source and fiber coupling conditions, and then through the way of single lens coupling, respectively, using red, green laser, plastic optical fiber and the multimode quartz fiber to the original rational research to study the feasibility of the laser fiber optic lighting.Then discuss the various factors that influence the coupling efficiency between the laser source and optical fiber.

Keywords: semiconductor light source; fiber ;coupling efficiency;fiber lighting

目录

1 绪论 4

1.1 课题背景 4

1.2 国内外研究现状与发展趋势 4

1.3 研究目的及意义 5

1.4 本文的研究内容 7

2 半导体激光源概述 7

2.1 半导体激光源分类 7

2.2 半导体激光源发光原理简介 8

2.3 半导体激光器的光束特性及改善方法 8

3 光导纤维概述 10

3.1 光导纤维分类 10

3.2 光纤导光原理 10

3.3 激光光纤耦合理论 10

4 实验过程与分析 11

4.1 实验思路 11

4.1.1 实验材料的选择 11

4.1.2 实验光路的搭建 11

4.1.3 实验设计 12

4.2 实验过程 13

4.2.1 光纤端面处理 13

4.2.2 LD光源与光纤的空间耦合 14

4.3 实验分析 16

4.3.1 耦合方式分析 16

4.3.2 损耗分析 18

4.3.3 光谱数据及数据分析 19

4.3.4 耦合效率分析 21

4.3.5 误差分析 23

5 结论与展望