56 citations · 84 across the 7 of their papers we have counts for
6 papers · 1 filter
Tx-Rx Mode Mismatch Effects in Gaussian-Modulated CV QKD
Mateusz Kucharczyk, Michal Jachura, Marcin Jarzyna +2
The impact of technical limitations on pulse shaping used to generate a CV QKD signal is quantified in terms of the attainable secure key rate. Optimization of key spectral efficie…
Quantum Pulse Gate Attack on IM/DD Optical Key Distribution Exploiting Symbol Shape Distortion
M. Jarzyna, M. Jachura, K. Banaszek
Intensity modulation/direct detection (IM/DD) optical key distribution (OKD) is a method to generate a secret key whose security against passive eavesdropping is guaranteed by the…
Photon information efficiency limits in deep-space optical communications
M. Jarzyna, L. Kunz, W. Zwolinski +2
Deep-space optical communication links operate under severely limited signal power, approaching the photon-starved regime which requires a receiver capable of measuring individual…
Quantum Limits in Optical Communications
Konrad Banaszek, Ludwig Kunz, Michał Jachura +1
This tutorial reviews the Holevo capacity limit as a universal tool to analyze the ultimate transmission rates in a variety of optical communication scenarios, ranging from convent…
Approaching the ultimate capacity limit in deep-space optical communication
Konrad Banaszek, Ludwig Kunz, Marcin Jarzyna +1
The information capacity of an optical channel under power constraints is ultimately limited by the quantum nature of transmitted signals. We discuss currently available and emergi…
Shot-by-shot imaging of Hong-Ou-Mandel interference with an intensified sCMOS camera
Michał Jachura, Radosław Chrapkiewicz
We report the first observation of Hong-Ou-Mandel (HOM) interference of highly indistinguishable photon pairs with spatial resolution. Direct imaging of two-photon coalescence with…