Design of a temperature compensation birefringent filter based on thermo-optic effect for space solar exploration

Jie Zhao; Huili Yi; Zixuan Yang; Chengchao Liu

doi:10.1117/12.2682975

24 May 2023 Design of a temperature compensation birefringent filter based on thermo-optic effect for space solar exploration

Jie Zhao, Huili Yi, Zixuan Yang, Chengchao Liu

Author Affiliations +

Proceedings Volume 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023); 127060V (2023) https://doi.org/10.1117/12.2682975
Event: First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 2023, Shanghai, China

Abstract

This paper presents the studies on the temperature compensation of birefringent filtersfor space-based solar exploration(Hα 656.28 nm). The four-element Lyot filter has a thickness ratio of 1:2:4:8. The technique of temperature compensation of the birefringent filter is based on the complementary characteristics of thermo-optic coefficients between the Iceland spar and ADP birefringence crystals. This paper describes a procedure of designing an independent of temperature filter. This technique of temperature compensation has the advantage that the system does not have a complicated mechanical structure by selecting the appropriate ratio of length of two different birefringence crystals.

Citation Download Citation

Jie Zhao, Huili Yi, Zixuan Yang, and Chengchao Liu "Design of a temperature compensation birefringent filter based on thermo-optic effect for space solar exploration", Proc. SPIE 12706, First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023), 127060V (24 May 2023); https://doi.org/10.1117/12.2682975

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KEYWORDS

Tunable filters

Crystals

Optical filters

Thermal optics

Design and modelling

Birefringence

Optical path differences

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