5 October 2007 A high-speed modulated retro-reflector communication link with a transmissive modulator in a cat's eye optics arrangement
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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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Johan Öhgren, Johan Öhgren, Fredrik Kullander, Fredrik Kullander, Lars Sjöqvist, Lars Sjöqvist, Kun Wang, Kun Wang, Qin Wang, Qin Wang, Stéphane Junique, Stéphane Junique, Susanne Almqvist, Susanne Almqvist, Bertrand Noharet, Bertrand Noharet, } "A high-speed modulated retro-reflector communication link with a transmissive modulator in a cat's eye optics arrangement", Proc. SPIE 6736, Unmanned/Unattended Sensors and Sensor Networks IV, 673619 (5 October 2007); doi: 10.1117/12.737959; https://doi.org/10.1117/12.737959
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