Beam-Steered Sub-THz Channel Measurements in D-Band in an Industrial Environment
This paper presents results of a channel measurement campaign carried out in a production hall at a carrier frequency of 160 GHz which were analyzed with regards to beam-steering and macro-diversity gains.
A Fast and Accurate EDFA Model for the Optimization of Power-Efficient SDM Subsea Transmission Systems
In this paper, we present an adaptation of the extended Saleh model, using a coarse segmentation of the erbium doped fiber, to accurately include the impact of EDFA physics, with a limited complexity increase, in power efficiency predictions for...
Interoperable and Open Source Solution for Anchoring Augmented Reality Content to the Real World
This research demonstration presents an open source end-to-end solution for facilitating the anchoring of virtual content in the real world based on various platforms thanks to the interoperable specifications of the ETSI Augmented Reality...
Clock offset synchronization with sublinear complexity for quantum key distribution on low-level hardware
We introduce iQSync, a clock-offset recovery method for quantum key distribution. iQSync achieves sub-linear computational complexity, allowing for the implementation on low-level hardware. We demonstrate the method for channel attenuations...
Monolithic InP Ring Resonator based Laser with 40 kHz Linewidth and 40 nm Tuning Range
A narrow linewidth tunable laser based on ring resonators is presented. It uses low loss passive waveguides implemented in a monolithic InP photonic integrated circuit. The laser can be tuned over a wavelength range from 1559 nm to 1602 nm. The...
Single-Carrier 2.56 Tb/s (3-mode x 128-GBd x DP-16QAM) Transmission over a 53.7 km Few Mode Fiber
We investigate high-symbol rate SDM transmission using 16 to 128 GBd QPSK, 16-QAM and 64-QAM modulation over a 3-mode fiber. An aggregated net rate of 2.56 Tb/s was obtained after 54 km transmission using 128 GBd 16-QAM signals.
A Flexible Real-Time Quantum Key Distribution System for Fiber and Free-Space Links
To enable QKD in various scenarios, we developed a 625 MHz real-time autonomous timebin-phase QKD system with custom clock synchronization. We demonstrate the system’s performance and robustness under unstable link conditions, a variety of fiber...
Timebin-Phase BB84 Quantum Key Distribution Using Telecom-Wavelength Fiber-Coupled SPADs
Single-photon avalanche detectors (SPADs), which operate without cryogenic cooling, are a core component for practical QKD systems. We demonstrate 13-hour continuous key generation with our timebin-phase BB84 QKD system using our InGaAs/InP SPAD,...
Experimental demonstration of robust spatial-diversity combining for coherent free-space optical transmission
Spatial-diversity schemes are applied to improve signal quality of coherent free-space optical transmission systems with uncorrelated phase noise. We compare the performance of conventional schemes (MRC, SDC) to a newly proposed one (X-MRC).
Space-Division Multiplexed Transmission from the Lab to the Field
Researchers from the University of L’Aquila, NICT, Finisar, Prysmian, Nokia Bell Lab and Fraunhofer HHI Space-Division Multiplexed Transmission technologies from the Lab to the Field and present a summary for their work in this invited...