High-Rate Continuous-Variables Quantum Key Distribution with Piloted-Disciplined Local Oscillator
Bernhard Schrenk, Fabian Laudenbach, Chi‐Hang Fred Fung, Christoph Pacher, Andreas Poppe, Roland Lieger, D. Hillerkuss, Edwin Querasser, Gerhard Humer, Michael Hentschel, Momtchil Peev, Hannes Hübel · 2017
We present a pilot-disciplined coherent intradyne reception methodology for 250 Mbaud CV-QKD with frequency/phase-matched local oscillator. Experimental measurements indicate a secure key rate of 2.9 Mb/s over a link length of 12.8 km and >30 Mb/s for shorter-reach scenarios.