Downlink communication experiments with OSIRISv1 laser terminal onboard Flying Laptop satellite

Giggenbach, Dirk; Fuchs, Christian; Schmidt, Christopher C.; Rödiger, Benjamin; Gaisser, Steffen; Klinkner, Sabine; Phung, Duy‐Hà; Chabé, Julien; Courde, Clément; Maurice, Nicolas; Mariey, Hervé; Samain, E.; Artaud, Géraldine

doi:10.1364/ao.446771

Cited by 13 publications

(10 citation statements)

References 18 publications

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“…A CA is mounted near the focus of each telescope, both shown in Figure 1. The first facility was the 1.54 m diameter MéO (Métrologie Optique) telescope primarily used for satellite laser ranging (Bertrand, B. et al 2021), lunar ranging measurements (Bourgoin, A. et al 2021) and low Earth orbit satellite laser communication (Giggenbach, D. et al 2022). The optical design is based upon a Ritchey-Chrétien configuration on an altitude-azimuth mount with a primary focal length of 31.0 m giving an approximate focal ratio of f/20.1.…”

Section: Telescopesmentioning

confidence: 99%

Intensity Interferometry observations of the H$α$ envelope of $γ$ Cas with MéO and a portable telescope

Matthews¹,

Rivet²,

Vernet³

et al. 2023

Preprint

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We report on observations of the extended environment of the bright Be star γ-Cas performed using intensity interferometry measurements within its Hα emission line. These observations were performed using a modified version of the I2C intensity interferometry instrument installed onto the 1.54 meter MéO optical metrology telescope and a portable 1-meter telescope (T1M). In order to better constrain the extent of the H α envelope, observations were performed for two different positions of the T1M telescope, corresponding to an intermediate and long baselines in which the extended region was partially and fully resolved. We find that the observed data are consistent with past interferometric observations of γ-Cas. These observations demonstrate the capability to equip optical telescopes of different optical designs with intensity interferometry capabilities and illustrate the potential to scale a similar system onto many additional telescopes.

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Section: Telescopesmentioning

confidence: 99%

Intensity Interferometry observations of the H$α$ envelope of $γ$ Cas with MéO and a portable telescope

Matthews¹,

Rivet²,

Vernet³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…A CA is mounted near the focus of each telescope, both shown in Figure 1. The first facility was the 1.54 m diameter MéO (Métrologie Optique) telescope primarily used for satellite laser ranging (Bertrand et al 2021), lunar ranging measurements (Bourgoin et al 2021), and low-Earth orbit satellite laser communication (Giggenbach et al 2022). The optical design is based upon a Ritchey-Chrétien configuration on an altitudeazimuth mount with a primary focal length of 31.0 m giving an approximate focal ratio of f/20.1.…”

Section: Telescopesmentioning

confidence: 99%

Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope

Matthews

Rivet

Vernet

et al. 2023

Self Cite

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We report on observations of the extended environment of the bright Be star γ-Cas performed using intensity interferometry measurements within its Hα emission line. These observations were performed using a modified version of the I2C intensity interferometry instrument installed onto the 1.54 m MéO optical metrology telescope and a portable 1 m telescope (T1M). In order to better constrain the extent of the H α envelope, observations were performed for two different positions of the T1M telescope, corresponding to an intermediate and long baselines in which the extended region was partially and fully resolved. We find that the observed data are consistent with past interferometric observations of γ-Cas. These observations demonstrate the capability to equip optical telescopes of different optical designs with intensity interferometry capabilities and illustrate the potential to scale a similar system onto many additional telescopes.

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“…To evaluate the proposed approach we consider here two different AO systems for two different applications: LEO-to-ground optical communications downlink and a ground-based satellite imaging system. Both cases are based on systems that have already been operated on-sky by ONERA: the LISA AO bench 25,26 and the ODISSEE AO system 27 respectively.…”

Section: Application Casesmentioning

confidence: 99%

“…28 Table 1 provides a summary of the parameters of the system considered, the LISA AO bench by ONERA. 25,26…”

Section: Leo-to-ground Optical Telecommunications Downlinkmentioning

confidence: 99%

Predictive adaptive optics for satellite tracking applications: optical communications and satellite observation

Robles

Petit

Conan

et al. 2022

Adaptive Optics Systems VIII

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In low-Earth-orbit satellite tracking applications, the apparent wind component due to relative motion between the telescope and the different atmospheric turbulence layers leads to faster turbulence temporal dynamics, and thus increases the servo-lag error of adaptive optics systems. Nevertheless, this apparent wind component can be known a priori, since it only depends on the satellite's orbit. We propose a model-based predictive controller that incorporates a priori wind layer velocity information. The controller uses an autoregressive model computed from layer wind speeds and a C 2 n (z) profile. This approach derives from the spatio-angular linear quadratic Gaussian controller, and benefits from an analytical formulation. We present performance simulation results for two applications: optical communications and satellite observation; we analyse the impact of prediction in terms of relevant performance criteria for each application.

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Downlink communication experiments with OSIRISv1 laser terminal onboard Flying Laptop satellite

Cited by 13 publications

References 18 publications

Intensity Interferometry observations of the H$α$ envelope of $γ$ Cas with MéO and a portable telescope

Intensity Interferometry observations of the H$α$ envelope of $γ$ Cas with MéO and a portable telescope

Intensity Interferometry Observations of the Hα Envelope of γCas with MéO and a Portable Telescope

Predictive adaptive optics for satellite tracking applications: optical communications and satellite observation

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