3 May 2013 Low noise omnidirectional optical receiver for the mobile FSO networks
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A high sensitive optical receiver design for the mobile free space optical (FSO) networks is presented. There is an array of photo-detectors and preamplifiers working into same load. It is the second stage sum amplifier getting all signals together. This topology creates a parallel amplifier with an excellent signal to noise ratio (SNR). An automatic gain control (AGC) feature is included also. As a result, the effective noise suppression at the receiver side increases optical signal coverage even with the transmitter power being constant. The design has been verified on the model car which was able to respond beyond the line of sight (LOS).
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Karel Witas, Karel Witas, Stanislav Hejduk, Stanislav Hejduk, Vladimir Vasinek, Vladimir Vasinek, Jan Vitasek, Jan Vitasek, Jan Latal, Jan Latal, } "Low noise omnidirectional optical receiver for the mobile FSO networks", Proc. SPIE 8774, Optical Sensors 2013, 87741Q (3 May 2013); doi: 10.1117/12.2017086; https://doi.org/10.1117/12.2017086

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