Optical PPM Demodulation from Slot-Sampled Photon Counting Detectors

A scheme for the demodulation of an optical PPM signal from the sampled output of a photon counting detector is presented. The receiver operates on a time-series of samples, one sample per slot, from the bandlimited output of a photon counting detector operating in a photon starved channel. Algorith...

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Bibliographic Details
Published inMILCOM 2013 - 2013 IEEE Military Communications Conference pp. 1634 - 1638
Main Authors Quirk, Kevin J., Srinivasan, Meera
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2013
Subjects
Detectors
Interpolation
Least Squares Methods
Optical Communication
Optical receivers
Photonics
Pulse Position Modulation
Synchronization
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Summary:A scheme for the demodulation of an optical PPM signal from the sampled output of a photon counting detector is presented. The receiver operates on a time-series of samples, one sample per slot, from the bandlimited output of a photon counting detector operating in a photon starved channel. Algorithms to estimate the photon arrivals, interpolate the slot statistics, and estimate the slot phase in the presence of a sample to slot clock frequency offset are given, and the system performance is evaluated for a deep space optical communications link.
ISSN:2155-7578
2155-7586
DOI:10.1109/MILCOM.2013.277