一维阵列发生器的设计+Matlab仿真
关键词 阵列发生器 Dammann光栅 遗传算法 优化设计 Matlab仿真
毕业设计说明书（论文）外文摘要
Title The Design of One-dimensional Array Generator
Abstract
Basic theory of binary optics is introduced, based on which the basic principles of array generator and the generating process of spot array with equal intensity are investigated. On the basis of Dammann grating diffraction theory, a design method of spot array generator with equal intensity is developed and the formula of the complex amplitude of the grating diffraction field is deduced in detail. For the calculation of the grating structure parameters, the genetic algorithm (GA) is applied to optimize the design. Simulation based on Matlab is also used to calculate the diffraction field distribution and gives an intuitive light intensity distribution map of the spot array. For a given number of transition point N, the diffraction efficiency of different spot number is compared. In addition, some improvements of the design method are proposed. The fabrication process of array generator and the fabrication error in the process are also analyzed.
Keywords Array Generator Dammann Grating Genetic Algorithm
Optimal Design Matlab Simulation
目 次
1 引言 1
1．1 概述 1
1．2 本文主要工作 3
2 阵列发生器的理论设计 4
2．1 衍射理论基础 4
2．2 二元光学与Dammann光栅 5
2．3 光栅结构参数设计 7
3 阵列发生器的优化设计 11
3．1 优化设计方法 11
3．2 Matlab程序设计 13
3．3 光栅参数优化 16
4 阵列发生器的仿真与数据分析 18
4．1 光栅衍射仿真 18
4．2 数据分析 21
5 阵列发生器的制作 22
5．1 主要制作技术 22
5．2 制作流程 22
6 设计方法改进及制作误差分析 23
6．1 设计方法的改进 23
6．2 制作误差分析 23
结 论 25
致 谢 26
参 考 文 献 27
1 引言
1．1 概述
1.1.1 研究背景
随着近代光学和光电子技术的迅速发展，光电子仪器及其元件都发生了深刻而巨大的变化。新型光学元件也越来越多地应用在各种光电子仪器中，使光电子仪器及其零部件更加小型化、阵列化和集成化。微光学元件是制造小型光电子系统的关键元件，它具有体积小、质量轻、造价低等优点，并且能够实现普通光学元件难以实现的微小、阵列、集成、成像和波面转换等新功能，与传统光学元件相比，有着独特的优势。