Exact and Approximate Solutions for Risley-Prism- Based Beam-Steering Systems in Different Configurations

doi:10.1117/3.2593204.ch7

Book: Elements of Optical and Laser Beam Scanning: Modeling of Mirror and Prism Scanning Devices

Author(s): Yajun Li

Published: 2021

https://doi.org/10.1117/3.2593204.ch7

Author Affiliations +

Abstract

Chapters 7 through 10 are the four Chapters in Part III of this book and devoted to a discussion of Risley-prism-based beam-steering systems (i.e., rotating wedge prism scanning systems), which have two basic problems in practical application. Chapter 7 considers the exact and approximate solutions of first problem, i.e., given the two prisms’ orientations, in what direction does the laser beam propagate after emerging from the system? Chapters 8 and 9 consider the second problem, which may be regarded as the inverse of the first one, i.e., given the required pointing position, what will be the orientations of the prisms? Prism systems in these three Chapters are considered error-free: no prism tilt and no beam and mechanical axes misalignment, which will be considered in Chapter 10 of this book.