The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Satellite-to-ground quantum-limited communication using a 50-kg-class microsatellite
Open accessAbstract
The recent rapid growth of satellite-constellation programmes for remote sensing and communications, enabled by the availability of small-sized and low-cost satellites, has provided impetus for the development of high-capacity laser communication (lasercom) in space. Quantum-limited communication can enhance the performance of lasercom and is also a prerequisite for the intrinsically hack-proof secure communication known as quantum key distribution. Here, we report a quantum-limited communication experiment between a microsatellite (48 kg, 50 cm cube) in low Earth orbit and a ground station. Non-orthogonal polarization states were transmitted from the satellite at a 10 MHz repetition rate. On the ground, by post-processing the received quantum states with ∼0.146 photons per pulse, clock data recovery and polarization reference-frame synchronization were successfully achieved, even under remarkable Doppler shifts. The quantum states were discriminated by a receiver with four photon counters, with a quantum bit error rate below 5%, validating the applicability of our technology to satellite-to-ground lasercom and quantum key distribution. The feasibility of satellite-to-ground quantum communication is demonstrated by using a microsatellite in low-Earth orbit. The quantum states are discriminated by a ground receiver with four photon-counters with a quantum bit error rate below 5%.
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Metadata
- Authors
- Takenaka, H., Carrasco-Casado, A., Fujiwara, M., Kitamura, M., Sasaki, M., & Toyoshima, M.
- Venue
- Nature Photonics
- Published
- 2017-07-10
- Volume
- 11
- Issue
- 8
- Pages
- 502-508
- ISSN
- 1749-4885 (ISSN-L)
- 1749-4893
- OpenAlex
- W2730052586
- Cited by
- 299
- References
- 24
- FWCI
- 19.35
- Type
- journal article
- Language
- en
- Open access
- green
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