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Proceedings Paper

A high-speed modulated retro-reflector communication link with a transmissive modulator in a cat's eye optics arrangement
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Paper Abstract

An optical communication link with a modulated retro-reflector in a cat's eye optics arrangement has been evaluated. A transmissive multiple quantum well modulator with a modulation bandwidth in excess of 10 MHz was placed in a wide field-of-view cat's eye optic system. A laser transceiver with one line and one broadband source around 1550 nm was used to interrogate the modulated retro-reflector and detect the reflected and modulated signal. Multi-level digital encoding was evaluated as a way to increase the information transfer rate in conditions with relatively high signal-to-noise ratio. The links were evaluated in indoor as well as outdoor conditions.

Paper Details

Date Published: 5 October 2007
PDF: 12 pages
Proc. SPIE 6736, Unmanned/Unattended Sensors and Sensor Networks IV, 673619 (5 October 2007); doi: 10.1117/12.737959
Show Author Affiliations
Johan Öhgren, Swedish Defence Research Agency (Sweden)
Fredrik Kullander, Swedish Defence Research Agency (Sweden)
Lars Sjöqvist, Swedish Defence Research Agency (Sweden)
Kun Wang, Acreo AB (Sweden)
Qin Wang, Acreo AB (Sweden)
Stéphane Junique, Acreo AB (Sweden)
Susanne Almqvist, Acreo AB (Sweden)
Bertrand Noharet, Acreo AB (Sweden)

Published in SPIE Proceedings Vol. 6736:
Unmanned/Unattended Sensors and Sensor Networks IV
Edward M. Carapezza, Editor(s)

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