Use of adaptive optics in ground stations for high data rate satellite-to-ground links

Fischer, Edgar; Berkefeld, T.; Feriencik, Mikael; Feriencik, Marco; Kaltenbach, Volker; Soltau, D.; Adolph, P.; Czichy, Reinhard H.; Kunde, J.; Heine, F.; Saucke, Karen; Meyer, Rolf; Richter, Ines; Sodnik, Zoran

doi:10.1117/12.2296200

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…The downlink experiences lower losses and the OGS can be equipped with a large diameter receiver (or use the Coudé focus of the main telescope) as well as cooled highsensitivity detectors, together allowing for the use of a relatively low power laser source and small transmitter telescope on the space segment. Finally, we note the encouraging result reported in [58] that the large difference in quantum channel and beacon laser wavelength does not preclude using the beacon laser at 1550 nm to correct the turbulence-induced beam wander at the quantum channel wavelength of 808 nm (employing, e.g., a fast steering mirror on the OGS or its adaptive optics system [59]).…”

Section: /34mentioning

confidence: 71%

Nanobob: a cubesat mission concept for quantum communication experiments in an uplink configuration

Kerstel

Bourdarot

LeCoarer

et al. 2019

International Conference on Space Optics — ICSO 2018

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We present a ground-to-space quantum key distribution (QKD) mission concept and the accompanying feasibility study for the development of the low earth orbit CubeSat payload. The quantum information is carried by single photons with the binary codes represented by polarization states of the photons. Distribution of entangled photons between the ground and the satellite can be used to certify the quantum nature of the link: a guarantee that no eavesdropping can take place. By placing the entangled photon source on the ground, the space segments contains "only" the less complex detection system, enabling its implementation in a compact enclosure, compatible with the 12U CubeSat standard (12 dm 3 ). This reduces the overall cost of the project, making it an ideal choice as a pathfinder for future European quantum communication satellite missions. The space segment is also more versatile than one that contains the source since it is compatible with a multiple of QKD protocols (not restricted to entangled photon schemes) and can be used in quantum physics experiments, such as the investigation of entanglement decoherence. Other possible experiments include atmospheric transmission/turbulence characterization, dark area mapping, fine pointing and tracking, and accurate clock synchronization; all crucial for future global scale quantum communication efforts.

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Section: /34mentioning

confidence: 71%

Nanobob: a cubesat mission concept for quantum communication experiments in an uplink configuration

Kerstel

Bourdarot

LeCoarer

et al. 2019

International Conference on Space Optics — ICSO 2018

View full text Add to dashboard Cite

show abstract

“…The downlink experiences lower losses and the OGS can be equipped with a large diameter receiver (or use the Coudé focus of the main telescope) as well as cooled high-sensitivity detectors, together allowing for the use of a relatively low power laser source and small transmitter telescope on the space segment. Finally, we note the encouraging result reported in [61] that the large difference in quantum channel and beacon laser wavelength does not preclude using the beacon laser at 1550 nm to correct the turbulence-induced beam wander at the quantum channel wavelength of 808 nm (employing, e.g., a fast steering mirror on the OGS or its adaptive optics system [62]).…”

Section: Beacon Lasersmentioning

confidence: 71%

Nanobob: a CubeSat mission concept for quantum communication experiments in an uplink configuration

Kerstel¹,

Gardelein²,

Barthélemy³

et al. 2018

EPJ Quantum Technol.

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We present a ground-to-space quantum key distribution (QKD) mission concept and the accompanying feasibility study for the development of the associated low earth orbit nanosatellite payload. The quantum information is carried by single photons with the binary codes represented by polarization states of the photons. Distribution of entangled photons between the ground and the satellite can be used to certify the quantum nature of the link: a guarantee that no eavesdropping can take place. By placing the entangled photon source on the ground, the space segments contains "only" the less complex detection system, enabling its implementation in a compact enclosure, compatible with the 12U CubeSat standard (∼12 dm 3). This reduces the overall cost of the project, making it an ideal choice as a pathfinder for future European quantum communication satellite missions. The space segment is also more versatile than one that contains the source since it is compatible with a multiple of QKD protocols (not restricted to entangled photon schemes) and can be used in quantum physics experiments, such as the investigation of entanglement decoherence. Other possible experiments include atmospheric transmission/turbulence characterization, dark area mapping, fine pointing and tracking, and accurate clock synchronization; all crucial for future global scale quantum communication efforts.

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“…Also, the high achievable data rates and other methods for increasing the sensitivity (like optical pre-amplification or coherent modulation) are desirable. Here, optical space communications follow terrestrial systems [14], but these often require a higher implementation effort, such as with adaptive optics for the single mode fiber coupling of an atmospherically distorted optical field [15]. Bulk AP-detectors do not require such sophisticated techniques and allow focal illumination with an atmospherically distorted light field.…”

Section: Introductionmentioning

confidence: 99%

Free-Space Optical Data Receivers with Avalanche Detectors for Satellite Downlinks Regarding Background Light

Giggenbach

2022

Sensors

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Data receiving frontends using avalanche photodiodes are used in optical free-space communications for their effective sensitivity, large detection area, and uncomplex operation. Precise control of the high voltage necessary to trigger the avalanche effect inside the photodiode depends on the semiconductor’s excess noise factor, temperature, received signal power, background light, and also the subsequent thermal noise behavior of the transimpedance amplifier. Several prerequisites must be regarded and are explained in this document. We focus on the application of using avalanche photodiodes as data receivers for the on/off-keying of modulated bit streams with a 50% duty cycle. Also, experimental verification of the performance of the receiver with background light is demonstrated.

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Use of adaptive optics in ground stations for high data rate satellite-to-ground links

Cited by 4 publications

References 3 publications

Nanobob: a cubesat mission concept for quantum communication experiments in an uplink configuration

Nanobob: a cubesat mission concept for quantum communication experiments in an uplink configuration

Nanobob: a CubeSat mission concept for quantum communication experiments in an uplink configuration

Free-Space Optical Data Receivers with Avalanche Detectors for Satellite Downlinks Regarding Background Light

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