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Proceedings Paper • Open Access

High-speed ADC and DAC modules with fibre optic interconnections for telecom satellites
Author(s): Veli Heikkinen; Eveliina Juntunen; Mikko Karppinen; Kari Kautio; Jyrki Ollila; Aila Sitomaniemi; Antti Tanskanen; Rory Casey; Shane Scott; Hélène Gachon; Michel Sotom; Norbert Venet; Jaakko Toivonen; Taisto Tuominen; Nikos Karafolas

Paper Abstract

The flexibility required for future telecom payloads calls for the introduction of more and more digital processing capabilities. Aggregate data throughputs of several Tbps will have to be handled onboard, thus creating the need for effective, ADCDSP and DACDSP highspeed links. ADC and DAC modules with optical interconnections is an attractive option as it can solve easily the transmission and routing of the expected huge amount of data. This technique will enable to increase the bandwidth and/or the number of beams/channels to be treated, or to support advanced digital processing architectures including beam forming.

We realised electrooptic ADC and DAC modules containing an 8 bit, 2 GSa/s A/D converter and a 12 bit, 2 GSa/s D/A converter. The 4channel parallel fibre optic link employs 850nm VCSELs and GaAs PIN photodiodes coupled to 50/125μm fibre ribbon cable. ADCDSP and DSPDAC links both have an aggregate data rate of 25 Gbps. The paper presents the current status of this development.

Paper Details

Date Published: 21 November 2017
PDF: 8 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 1056615 (21 November 2017); doi: 10.1117/12.2308251
Show Author Affiliations
Veli Heikkinen, VTT (Finland)
Eveliina Juntunen, VTT (Finland)
Mikko Karppinen, VTT (Finland)
Kari Kautio, VTT (Finland)
Jyrki Ollila, VTT (Finland)
Aila Sitomaniemi, VTT (Finland)
Antti Tanskanen, VTT (Finland)
Rory Casey, FibrePulse Ltd. (Ireland)
Shane Scott, FibrePulse Ltd. (Ireland)
Hélène Gachon, Thales Alenia Space (France)
Michel Sotom, Thales Alenia Space (France)
Norbert Venet, Thales Alenia Space (France)
Jaakko Toivonen, Patria Aviation Oy (Finland)
Taisto Tuominen, Patria Aviation Oy (Finland)
Nikos Karafolas, European Space Research and Technology Ctr. (Netherlands)

Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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