Atmospheric optical turbulence analysis in London’s financial district

Westerby-Griffin, Lily; Osborn, James; Farley, Ollie J. D.; Griffiths, Ryan; Love, Gordon D.

Abstract

Atmospheric optical turbulence causes signal loses in laser propagation. Here we present vertical measurements of optical turbulence taken in London’s financial district. Additionally, we demonstrate a method of modelling atmospheric states in simulation from the measured data. From this we derive the predicted system performance of an optical downlink from a satellite in low Earth orbit (LEO) to ground in the atmospheric conditions observed on the night. We also present the improvements in performance with the addition of adaptive optics at the receiver end.

Citation

Westerby-Griffin, L., Osborn, J., Farley, O. J. D., Griffiths, R., & Love, G. D. (2023). Atmospheric optical turbulence analysis in London’s financial district. In H. Hemmati, & B. S. Robinson (Eds.), Proceedings Volume 12413, Free-Space Laser Communications XXXV. https://doi.org/10.1117/12.2648907

• Conference Name: Free-Space Laser Communications XXXV
• Conference Location: San Francisco, United States
• Start Date: Jan 28, 2023
• End Date: Feb 3, 2023
• Publication Date: Mar 15, 2023
• Deposit Date: Sep 7, 2023
• Publisher: SPIE
• Volume: 12413
• Book Title: Proceedings Volume 12413, Free-Space Laser Communications XXXV
• DOI: https://doi.org/10.1117/12.2648907
• Public URL: https://durham-repository.worktribe.com/output/1732570