PMD-Tolerant 20 krad/s Endless Polarization and Phase Control for BB84-Based QKD with TDM Pilot Signals
Conference: Photonische Netze - 21. ITG-Fachtagung
11/24/2020 - 11/25/2020 at online
Proceedings: Photonische Netze
Pages: 3Language: englishTyp: PDF
Authors:
Koch, Benjamin; Noe, Reinhold (Paderborn University, EIM-E, Paderborn, Germany & Novoptel GmbH, Paderborn, Germany)
Abstract:
TDM-based polarization and differential phase control with 35ps PMD tolerance and 20krad/s tracking speed is demonstrated. 600ns intervals are reserved for QKD and for 0deg- and 45deg-polarized pilot signals. ECLs are modulated directly, with high extinction. Power budget is 17dB, fiber length is 63 km.