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Sensing ultra-low-power radio signals by photonic analog-to-digital conversion

Llorente, R. ; Castro, M. ; Puche, J.P. ; Romme, J. ; Alves , T. M. F.

Sensing ultra-low-power radio signals by photonic analog-to-digital conversion, Proc European Conf. on Optical Communications - ECOC, Viena, Austria, Vol. -, pp. 1 - 2, September, 2009.

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Abstract
A time-stretched photonic analog-to-digital converter with optical amplification is proposed to sense
ultra-low power signals for cognitive radio applications. Experimental results show that -65 dBm RF carrier can be
monitored with 20.84 dB signal-to-noise ratio.