Incoherent on-off keying with classical and non-classical light
Marcin Jarzyna, Piotr Kuszaj, Konrad Banaszek
TL;DR
This paper investigates the performance of on-off keying and pulse position modulation in low-photon-number optical channels, analyzing how photon statistics and light source properties affect communication efficiency.
Contribution
It provides an analytical approximation for the maximum PPM transmission rate considering photon statistics and discusses potential improvements with sub-Poissonian light.
Findings
Analytical approximation for maximum PPM rate derived
Photon statistics significantly impact communication efficiency
Sub-Poissonian light can enhance performance
Abstract
We analyze the performance of on-off keying (OOK) and its restricted version pulse position modulation (PPM) over a lossy narrowband optical channel under the constraint of a low average photon number, when direct detection is used at the output. An analytical approximation for the maximum PPM transmission rate is derived, quantifying the effects of photon statistics on the communication efficiency in terms of the second-order intensity correlation function of the light source. Enhancement attainable through the use of sub-Poissonian light is discussed.
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