Optical system structural and thermal jitter analysis using Ansys Zemax OpticStudio

Hui Chen; Julia Zhang; Mojtaba Falahati; Christophe Weisse

doi:10.1117/12.3003303

12 March 2024 Optical system structural and thermal jitter analysis using Ansys Zemax OpticStudio

Hui Chen, Julia Zhang, Mojtaba Falahati, Christophe Weisse

Proceedings Volume 12877, Free-Space Laser Communications XXXVI; 128771X (2024) https://doi.org/10.1117/12.3003303
Event: SPIE LASE, 2024, San Francisco, California, United States

Conference Poster

Abstract

Optical systems used in aerospace applications are often subject to random vibrations excited by internal and external forces; these range from engine vibrations in airborne systems to gravity and wind forces for ground-based systems. These random motions cause optical elements to shift position, thereby impacting their imaging performance and leading to lower image resolution or image registration errors. Vibration jitter analysis is a method by which such performance degradation can be quantified, and it guides the opto-mechanical design of the system. However, such jitter analysis can be very challenging, as it often incorporates data exchange among several commercial software packages or in-house codes. In this paper we proposed a multiphysics jitter analysis workflow to analyze jitter induced performance impact in optical system using the Ansys Zemax OpticStudio STAR Module and Ansys Mechanical. Ansys mechanical performs finite element analysis of the optical system under field condition. The structural and thermal information is then passed back to Zemax OpticStudio STAR module to analysis the optical performance degradation. Two main jitter impacts are considered: the slow jitter effects due to temperature gradients and the fast jitter effects due to random vibration. The insight gained from this analysis will help guide optical system packaging design to achieve better performance on the system level.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Hui Chen, Julia Zhang, Mojtaba Falahati, and Christophe Weisse "Optical system structural and thermal jitter analysis using Ansys Zemax OpticStudio", Proc. SPIE 12877, Free-Space Laser Communications XXXVI, 128771X (12 March 2024); https://doi.org/10.1117/12.3003303

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