二维波束扫描系统中的角放大器

IF 5.2 1区物理与天体物理 Q1 OPTICS

High Power Laser Science and Engineering Pub Date : 2023-01-05 DOI:10.1017/hpl.2022.42

Y. dong, Yunxia Jin, Fanyu Kong, Jingyin Zhao, J. Mo, Dongbing He, Jing Sun, J. Shao

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引用次数: 0

摘要

设计并制备了一种基于自转多路体布拉格光栅的二维角度放大器，并提出了一种优化通道数的计算方法。微差复用的诱导减小了同一块光栅的性能差异，而无需刻意优化制造工艺。结果表明，在±30°的离散二维角偏转范围内，同一光栅各通道的相对衍射效率均达到55%以上，均方根偏差小于3.4%。Bragg入射角和出口角与期望值的偏差小于0.07°。认为所设计的二维角度放大器具有实现高功率激光束扫描系统中高性能、大角度光束转向的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Angle amplifier in a 2D beam scanning system based on peristrophic multiplexed volume Bragg gratings

Abstract In this paper, a 2D angle amplifier based on peristrophic multiplexed volume Bragg gratings is designed and prepared, in which a calculation method is firstly proposed to optimize the number of channels to a minimum. The induction of peristrophic multiplexing reduces the performance difference in one bulk of the grating, whereas there is no need to deliberately optimize the fabrication process. It is revealed that a discrete 2D angle deflection range of ±30° is obtained and the relative diffraction efficiency of all the grating channels reaches more than 55% with a root-mean-square deviation of less than 3.4% in the same grating. The deviation of the Bragg incidence and exit angles from the expected values is less than 0.07°. It is believed that the proposed 2D angle amplifier has the potential to realize high-performance and large-angle beam steering in high-power laser beam scanning systems.

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来源期刊

High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics

CiteScore

7.10

自引率

4.20%

发文量

401

审稿时长

21 weeks

期刊介绍： High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.