@inproceedings{c2a02ee894544852a70c014d1a17fcf1,
title = "A small, low-cost, turbulence profiling instrument for free-space optical communication",
abstract = "Characterisation and mitigation of atmospheric turbulence is critical for free space optical communication that relies on adaptive optics such as high bit rate coherent modulation or quantum key distribution. Turbulence profiling, i.e. measuring turbulence at different altitudes, provides more detail than typical seeing monitors and supports sophisticated AO and the possibility to forecast conditions. We present the implementation of a Ring-Image Next Generation Scintillation Sensor (RINGSS) instrument that profiles turbulence with a novel approach of defocused ring images introduced by A. Tokovinin (2021)1. RINGSS is exceptionally low-cost, small, and fully automated, requiring significantly simpler equipment than previous turbulence profilers. We have demonstrated preliminary results that demonstrate the capability of this instrument for measurements of seeing and a low resolution turbulence profile. Future work is outlined that includes cross-calibration with a Stereo-SCIDAR instrument recently commissioned on the ANU 2.3m telescope at Siding Spring Observatory and plans for deployment at prospective optical ground station sites for an Australia-New Zealand optical network.",
keywords = "Free-space optical communication, adaptive optics, atmospheric turbulence, scintillation",
author = "Marcus Birch and Francis Bennet and Michael Copeland and Doris Grosse and Josephine Munro and Tony Travouillon",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Free-Space Laser Communications XXXV 2023 ; Conference date: 30-01-2023 Through 01-02-2023",
year = "2023",
doi = "10.1117/12.2646569",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Hamid Hemmati and Robinson, {Bryan S.}",
booktitle = "Free-Space Laser Communications XXXV",
address = "United States",
}