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12 July 2019 Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON
Vanessa C. Duarte, João G. Prata, Rogério N. Nogueira, Georg Winzer, Lars Zimmermann, Rob Walker, Stephen Clements, Marta Filipowicz, Marek Napierala, Tomasz Nasilowski, Jonathan Crabb, Leontios Stampoulidis, Javad Anzalchi, Miguel V. Drummond
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Proceedings Volume 11180, International Conference on Space Optics — ICSO 2018; 1118079 (2019) https://doi.org/10.1117/12.2536180
Event: International Conference on Space Optics - ICSO 2018, 2018, Chania, Greece
Abstract
In this paper we present a 4-channel silicon photonic true-time delay (TTD) beamformer in which the phase of each channel is automatically adjusted in real-time. Beamforming was demonstrated with a 1 Gb/s QPSK signal carried at 28 GHz. The demonstration comprised the following custom made devices: two arrays of GaAs Mach-Zehnder modulators (MZMs), a radiation-hardened 7-core erbium-doped fiber amplifier (MC-EDFA) for power boosting, and a silicon photonic integrated circuit (PIC) containing a 4 × 1 TTD optical beamformer network (OBFN). Having provided a successful proof-of-concept demonstration, the dimensioning of an end-to-end photonic-aided payload receiver is here studied. It comprises the proposed OBFN fed by 100 antenna elements (AEs) in a multibeam scenario, also providing an estimation of the system’s power consumption.
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Vanessa C. Duarte, João G. Prata, Rogério N. Nogueira, Georg Winzer, Lars Zimmermann, Rob Walker, Stephen Clements, Marta Filipowicz, Marek Napierala, Tomasz Nasilowski, Jonathan Crabb, Leontios Stampoulidis, Javad Anzalchi, and Miguel V. Drummond "Modular and smooth introduction of photonics in high-throughput communication satellites – perspective of project BEACON", Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 1118079 (12 July 2019); https://doi.org/10.1117/12.2536180
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KEYWORDS
Signal to noise ratio
Phase shifts
Photonics
Signal processing
Interference (communication)
Photonic integrated circuits
Signal attenuation
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