Stray light estimates due to micrometeoroid damage in space optics, application to the LISA telescope

Khodnevych, Vitalii; Lintz, Michel; Dinu-Jaeger, Nicoleta; Christensen, N.

doi:10.1117/1.jatis.6.4.048005

Cited by 10 publications

(4 citation statements)

References 12 publications

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“…To avoid serious impact of air scattering on the accuracy of stray light testing, the "Vacuum Test Chamber Stray Light Testing System" and "High Cleanliness Double Column Tank Testing System" are mainly used for high-precision PST testing [21], [22]. The first system reduces the numbers of dust particles by vacuuming the test chamber, thereby effectively decreases Rayleigh scattering.…”

Section: Working Principle Of Stray Light Test Systemmentioning

confidence: 99%

Study on Stray Light Testing and Suppression Techniques for Large-Field of View Multispectral Space Optical Systems

Lu,

Xu,

Zhang

et al. 2024

IEEE Access

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To evaluate the ability of space optical systems to suppress off-axis stray light, this paper proposes a stray light testing method for large-field of view, multispectral spatial optical systems based on point source transmittance (PST). And a stray light testing platform was developed using a high-brightness simulated light source, large-aperture off-axis reflective collimator, high-precision positioning mechanism and a double column tank to evaluate the stray light PST index of spatial optical system. On the basis of theoretical analyses, a set of calibration lenses and stray light elimination structures such as hoods, baffle and stop are designed for the accuracy calibration of stray light testing systems. The theoretical PST values of the calibration lens at different off-axis angles are analyzed by Trace Pro software simulation and compared with the measured values to calibrate the accuracy of the system. The testing results show that the PST measurement range of the system reaches 10 -3 ~10 -10 when the off-axis angles of the calibration lens are in the range of ±5°±60°. The stray light test system has the advantages of wide working band, high automation and large dynamic range, and its test results can be used in the correction of lens hood and other applications.INDEX TERMS Multi-spectrum, large-field view, stray light, point source transmittance (PST), lens hood

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Section: Working Principle Of Stray Light Test Systemmentioning

confidence: 99%

Study on Stray Light Testing and Suppression Techniques for Large-Field of View Multispectral Space Optical Systems

Lu,

Xu,

Zhang

et al. 2024

IEEE Access

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“…Wang et al proposed methods for specific laser systems [30][31][32] , but these methods required extremely high operating conditions. Moreover, their method of suppression and optimisation was fixed, which was suitable for the removal of deterministic stray light, but the influence of suppressing stray light could not be obtained directly through a universal law.…”

Section: Zhu Et Al Conducted Tracking and Detection Of Nondeterminist...mentioning

confidence: 99%

Propagation and amplification law of undetermined stray light and influence of signal-to-noise ratio in a multipass amplifier system

Wang

Xie

Huang

et al. 2023

Preprint

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Multipass amplifier systems in areas such as high-energy-density physics and astrophysics play an important role, but the undetermined stray light caused by defects seriously influencing the output signal-to-noise ratio (SNR) and even resulting in the failure of the main pulse bombardment. In this study, the modulation of nondeterministic stray light caused by the defects in the optical paths of different components in a multipass amplifier system was examined, and a Mie scattering model of multi-crack defects established. Using ray-tracing simulation, the spatial and temporal distribution of stray light was analysed, and experimental verification was conducted. The law of energy amplification for nondeterministic stray light caused by component defect modulation and an empirical formula for the signal to noise ratio of the pre-pulse system were established. This study provides a reference for the accurate troubleshooting of components, optical path defects and an important theoretical basis for the processing and correction of system components.

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“…The common types can be summarized as follows: In the ground section, stray light mainly comes from the roughness of the optical surface [1][2][3] , defects [4,5] , optical coatings [6,7] , particle contamination [8,9] , and system misalignment [10] . In the launch section, the stray light mainly comes from the influence of particle pollution and shock vibration on the opto-mechanical structure [11] . In the orbital section, stray light mainly comes from the deformation of optical lenses and optomechanical structures caused by microfluidics, plumes, outgassing, space microgravity, and the influence of optical path radiation focusing on optomechanical structures [12] .…”

Section: Analysis Of Stray Light Sources For Spaceborne Telescopesmentioning

confidence: 99%

Development and prospect of digital twin model for stray light of spaceborne telescope

WU,

Huang,

et al. 2023

Third International Computing Imaging Conference (CITA 2023)

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With the continuous deepening of research and development in the field of aerospace, the requirements for aerospace payloads are also increasing. The stray light received by the spaceborne telescope in the space environment will be one of the most important factors affecting its performance. The optical mechanical surface of spaceborne telescope will deviate from the original design due to various objective factors during the whole link process, and the actual optical mechanical surface is not ideal. In order to ensure that it can work normally, it is necessary to simulate and analyze the stray light situation of the whole link. This paper mainly introduces the complex environment and complex characteristics experienced from the ground section to the orbit section, analyzes and summarizes the sources of stray light, and finally proposes a framework for establishing a digital twin model of stray light for spaceborne telescopes. Through data-driven and model-driven methods, finally build a complete set of ground, launch, and in-orbit digital twin models.

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Stray light estimates due to micrometeoroid damage in space optics, application to the LISA telescope

Cited by 10 publications

References 12 publications

Study on Stray Light Testing and Suppression Techniques for Large-Field of View Multispectral Space Optical Systems

Study on Stray Light Testing and Suppression Techniques for Large-Field of View Multispectral Space Optical Systems

Propagation and amplification law of undetermined stray light and influence of signal-to-noise ratio in a multipass amplifier system

Development and prospect of digital twin model for stray light of spaceborne telescope

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