Multiphysics Coupling Simulation of Off-Axis Integrated Cavity Optical Sensing System

Author:

Tian Xing123,Yuan Jun12,Chen Shichao12,Cao Xile12,Mu Tong12,Cheng Gang3

Affiliation:

1. The First Affiliated Hospital of Anhui University of Science and Technology (Huainan First People’s Hospital), Anhui University of Science and Technology, Huainan 232001, China

2. School of Artificial Intelligence, Anhui University of Science and Technology, Huainan 232001, China

3. State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China

Abstract

The optical properties of an off-axis integrated cavity system are influenced by both structural deformation and thermal deformation. In this paper, the finite element simulation and analysis software COMSOL multiphysics was used to numerically simulate the optical system. By coupling geometric optics, solid mechanics, and solid heat transfer and conducting parametric temperature scanning, a multiphysics simulation of the off-axis integrated cavity optical sensing system was achieved. The effects of different temperature conditions on the stress field, displacement field, and optical mirrors were analyzed, and changes in optical properties were assessed using ray trajectories and point diagrams. Additionally, optical simulation software was used to simulate and optimize the experimental optical path, obtaining the distribution of light spots on the detector surface. This provides a theoretical basis for the subsequent optimization of the off-axis integrated cavity optical system.

Funder

Medical Special Cultivation Project of Anhui University of Science and Technology

National Natural Science Foundation of China

Publisher

MDPI AG

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