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D. Milovancev, T. Jukic, B. Steindl, P. Brandl, H. Zimmermann:
"Optical wireless communcation using a fully integrated 400 µm diameter APD receiver";
The Journal of Engineering, Vol. 1 (2017), 6 pages.

An optical wireless communication (OWC) system is demonstrated which uses a higly sensitive lens-less optoelectronic integrated circuit with a 400 µm diameter avalanche photodiode as a high-speed receiver, and a transmitter with highly collimated steerable beam at 680 nm wavelength. The benefits of integrated receiver with large-area photodiode in an OWC scenario are proven experimentally. At a data rate of 2 Gb/s OWC is established over a distance of 12 m without using any optics at the receiver side to increase the collection area. The maximum receiving angle of the lens-less receiver is 18^°. The receiver is tested under different lighting conditions and immunity to background light is validated up to 2000 lux without using any filter to reduce the photons outside the wavelength range of interest.

http://dx.doi.org/10.1049/joe.2017.0247