Generation of Large-Aperture Turbulence Based on Telescopic Imaging Principles

IF 2.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-04-09 DOI:10.1109/JPHOT.2025.3559175

Xin Yu;Jiasu Li;Guoqiang He;Suping Bai;Lingyun Wang;Xiaolong Ni;Lianghua Wen;Jing Liang;Jiahui Wang

引用次数: 0

Abstract

With increasing demand for extreme magnitude detection, star sensors are moving towards larger apertures. However, improved detection accuracy highlights the significant impact of atmospheric turbulence during calibration and operation. This study addresses the need for a 200 mm star sensor through turbulence simulation. Utilizing Keplerian imaging and aperture matching, we establish a conjugate relationship between the liquid crystal focal plane and the sensor, overcoming challenges in large-aperture simulation. Sparse spectrum inversion with a liquid crystal spatial light modulator enables dynamic simulation of atmospheric turbulence. Experimental validation shows simulated coherence lengths from 0.5 cm to 15 cm.

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基于望远镜成像原理的大孔径湍流的产生

随着对极端星等探测需求的增加，星敏感器正朝着更大孔径的方向发展。然而，探测精度的提高凸显了大气湍流在校准和操作过程中的重要影响。本研究通过紊流模拟解决了对200毫米星敏感器的需求。利用开普勒成像和孔径匹配，建立了液晶焦平面与传感器之间的共轭关系，克服了大孔径模拟中的难题。利用液晶空间光调制器进行稀疏光谱反演，实现了大气湍流的动态模拟。实验验证表明，模拟相干长度为0.5 cm ~ 15 cm。

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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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.