SPAD RECEIVER
A SPAD ARRAY FOR OPTICAL COMMUNICATIOS
Below is a demonstration of the SPAD based receiver for optical communications. Realtime audio (BBC Radio 2) is transmitted via an optical link from the ceiling to the desk, and then played on the loudspeakers. An FPGA simultaneously calculates the bit error rate (BER). The contents of this video were filmed in June of 2013 at School of Engineering, University of Oxford, UK. Please see below* for detail information regarding the SPAD array.
Fundamental theory and experiments:
Danial Chitnis and Steve Collins,"A SPAD-Based Photon Detecting System for Optical Communications" , J. Lightwave Technol. 32, 2028-2034 (2014)
200 Mb/s demonstration:
D. Chitnis et al.,"A 200 Mb/s VLC demonstration with a SPAD based receiver" , IEEE Summer Topicals Meeting Series (SUM), pp. 226-227, 2015
Comparison between APD and SPAD:
L. Zhang et al.,"A Comparison of APD- and SPAD-Based Receivers for Visible Light Communications" , in Journal of Lightwave Technology, vol. 36, no. 12, pp. 2435-2442, 2018