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12 July 2023 Optical ranging and time transfer calibration on the CubeSat Laser Infrared CrosslinK mission
Paul Serra, Hannah Tomio, Nicholas Belsten, William Kammerer, Peter Grenfell, Myles Clark, Danielle Coogan, Joseph Conroy, David Mayer, Jan Stupl, John Hanson, Laura Hyest, John Conklin, Kerri Cahoy
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Proceedings Volume 12777, International Conference on Space Optics — ICSO 2022; 127777K (2023) https://doi.org/10.1117/12.2691448
Event: International Conference on Space Optics — ICSO 2022, 2022, Dubrovnik, Croatia
Abstract
This work presents a novel calibration method for time transfer and ranging systems. The CLICK-B/C design uses a shared aperture for transmit and receive, and optical isolation is achieved using free-space dichroics and band-pass filters. During calibration, the transmitter is tuned close to the receiver assigned wavelength, bypassing filtering during calibration. The receiver is able to measure the outgoing signal due to internal reflections on the telescope lenses. The transmitter and receiver delays can then be subtracted from time of flight, eliminating delay uncertainties arising from all components of the transmitter and receiver, with minimal change in their operating conditions. Thanks to the high repetition rates of communication links, more than 10 MHz, this method could lead to millimeter-level absolute ranging, as well as time transfer accuracy in the low picoseconds, enabling new applications and advances in space radio interferometry, GPS-denied navigation, and time synchronization for synthetic aperture telescopes.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Paul Serra, Hannah Tomio, Nicholas Belsten, William Kammerer, Peter Grenfell, Myles Clark, Danielle Coogan, Joseph Conroy, David Mayer, Jan Stupl, John Hanson, Laura Hyest, John Conklin, and Kerri Cahoy "Optical ranging and time transfer calibration on the CubeSat Laser Infrared CrosslinK mission", Proc. SPIE 12777, International Conference on Space Optics — ICSO 2022, 127777K (12 July 2023); https://doi.org/10.1117/12.2691448
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KEYWORDS
Avalanche photodetectors
Calibration
Pulse signals
Ranging
Reflection
Transmitters
Receivers
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