Ultrahigh-capacity optical-wireless communication using 2D gratings for steering and decoding of DPSK signals

We demonstrate the use of a 2D-gratings beam-steering device also as a demodulator for multiple differentially-encoded optical-wireless signals. Using this novel concept, ~2bits/sec/Hz spectral-efficiency was achieved without any change in the system compared to on-off-keying

Photonic integrated circuits employing multi-core fiber for broadband radio beamsteering (Invited)

This paper presents an optical beamforming network based on a photonic integrated circuit employing a weaklycoupled multi-core fiber to connect the different antenna elements. The proposed beamformer enables a centralized control of the resulting steering angle. By means of wavelength tuning, fast and dynamic configuration of the induced delay (and associated beam steering angle) is achieved remotely. The experimental results confirm high throughput transmission (> 10 Gbps) with electrical data signals with up to 3GHz bandwidth in the 24 GHz RF band (K-band). Wireless transmission of 16QAM-modulated, 1.5 GHz-wide signals is demonstrated in the laboratory from –26˚ to 33˚ providing a scanning range of 59˚

Optical home network based on an NxN multimode fiber architecture and CWDM technology

International audienceWith this optical home network solution associating an NxN multimode architecture and CWDM technology, various applications and network topologies are supported by a unique multiformat infrastructure. Issues related to the use of MMF are discussed

Spatial Diversity Performance of DMT, PAM4 Gigabits per second Transmission Using POF as Luminaires

A spatial diversity scheme using 1mm core size plastic optical fibre as luminaires with 1.2m free space is experimentally evaluated. Discrete multitone and pulse amplitude modulation on a red wavelength demonstrate throughputs of 3.3Gbps

A Robust and Low-Cost 2-Dimensional Pressure Sensing System using Polymer Optical Fibre

A novel system based on a robust grid of standard low-cost Polymer Optical Fibres has been created which efficiently detects varying 2-dimensional pressure profiles at high speed. Unobtrusive body movement detection in bed is demonstrated with 25 profiles/s using an easy to manufacture 16×8 grid

Fully passive user localisation for beam-steered high-capacity optical wireless communication system

Accurate device localisation within the 10cm pico-cell resolution of a 2D beam-steered optical wireless communication system is achieved by applying a large matrix of miniature corner-cube retro-reflectors. No power-consuming elements are needed at the receiver. Real-time transfer of multiple 10GbE video streams has been demonstrated

Compact K-band Photonic Beamsteerer Assisted with Weakly-Coupled Multi-Core Fiber

An optical beamsteerer of a photonic integrated circuit employing a weakly-coupled multi-core fiber enables 3-GHz bandwidth in the 24 GHz RF band and a scanning range of 59°, resulting in 16QAM 12 Gbp