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12 July 2023 Transmission of multi-tera-bits/sec to quantum bits over space intra-and inter-orbital links
Le Nguyen Binh, Maximilian Koegler, Carsten Fechtmann, Axel Hof, Joachim Horwath
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Proceedings Volume 12777, International Conference on Space Optics — ICSO 2022; 127773Z (2023) https://doi.org/10.1117/12.2690622
Event: International Conference on Space Optics — ICSO 2022, 2022, Dubrovnik, Croatia
Abstract
Optical transmission over space links between satellites in intra-orbital constellations or inter-orbital constellations and optical ground stations are currently attracting a lot of attention, both for their ultra-high capacities reaching multi-tera-bits/sec and for their use in quantum key distribution for coding to transmitting over public channels. This paper outlines the followings: (i) Multi-dimensional considerations to reach Tera-bits/sec that include multiplexing of polarized modes, high-order modulation formats, high speed integrated photonic complex modulations, digital signal processing techniques etc.; (ii) Continuous variable quantum key distribution (CV-QKD) achieved through constant amplitude zero auto-correlation (CAZAC) sequence for quantum level signaling with phase-coded BB84- protocol, decorrelation , high order sampling rate and digital signal processing for quantum key recovery. (iii) Discussion of advantages and disadvantages of both coherent and self-coherent reception techniques for space transmission channels for multi-photons to sub-photon energy reception and transmission; (iv) Presentation of initial transmission results and Terabits/s optical transmission systems; (vi) Analytical considerations of CV-QKD space self-homodyne and homodyne reception system employing CAZAC and cross-correlation decoding as a photonic-pre-processor. Additional presentation content can be accessed on the supplemental content page.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Le Nguyen Binh, Maximilian Koegler, Carsten Fechtmann, Axel Hof, and Joachim Horwath "Transmission of multi-tera-bits/sec to quantum bits over space intra-and inter-orbital links", Proc. SPIE 12777, International Conference on Space Optics — ICSO 2022, 127773Z (12 July 2023); https://doi.org/10.1117/12.2690622
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KEYWORDS
Optical transmission
Digital signal processing
Quantum channels
Channel projecting optics
Telecommunications
Modulation
Quantum communications
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