A5102754406- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Pesticide and Herbicide Environmental Studies
- Semiconductor Lasers and Optical Devices
- Soil erosion and sediment transport
- Advanced Optical Network Technologies
- Agriculture and Rural Development Research
- Hydrology and Watershed Management Studies
- Atmospheric and Environmental Gas Dynamics
- Remote-Sensing Image Classification
- Optical Wireless Communication Technologies
- Ion-surface interactions and analysis
- X-ray Spectroscopy and Fluorescence Analysis
- Coal Properties and Utilization
- Hydrology and Sediment Transport Processes
- Electron and X-Ray Spectroscopy Techniques
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Cybernetics and Technology in Society
- Antenna Design and Optimization
- Millimeter-Wave Propagation and Modeling
- Interdisciplinary Studies: Technology, Society, and Humanities
- Weed Control and Herbicide Applications
LioniX (Netherlands)
2017-2025
University of Twente
2011-2024
Eindhoven University of Technology
1994-2022
Netherlands Institute for Radio Astronomy
2021
Centre Hospitalier de Beauvais
2016
University of Georgia
2012
ISRIC - World Soil Information
2007-2008
ASML (Netherlands)
2002-2007
Centre National de la Recherche Scientifique
2005
Université de Strasbourg
2005
An overview of the most recent developments and improvements to low-loss TriPleX Si 3 N 4 waveguide technology is presented in this paper.The platform provides a suite geometries (box, double stripe, symmetric single asymmetric stripe) that can be combined design complex functional circuits, but more important are manufactured monolithic process flow create compact photonic integrated circuit.All functionalities circuit constructed using standard basic building blocks, namely straight bent...
We present an overview of several microwave photonic processing functionalities based on combinations Mach-Zehnder and ring resonator filters using the high index contrast silicon nitride (TriPleX TM ) waveguide technology.All are built same basic building blocks, namely straight waveguides, phase tuning elements directional couplers.We recall previously shown measurements spurious free dynamic range (MWP) link, ultrawideband pulse generation, instantaneous frequency measurements, Hilbert...
Photonic chip based time-bin entanglement has attracted significant attention because of its potential for quantum communication and computation. Useful systems must be able to generate, manipulate analyze entangled photons on a photonic stable, scalable reconfigurable operation. Here we report the first that integrates generation, wavelength demultiplexing analysis. A two-photon interference fringe with an 88.4% visibility is measured (without subtracting any noise), indicating high...
The introduction of millimeter wave (mm-wave) frequency bands for cellular communications with significantly larger bandwidths compared to their sub-6 GHz counterparts, the resulting densification network deployments and antenna arrays beamforming result in major increases fronthaul capacity required 5G networks. As a result, radical re-design radio access is since traditional technologies are not scaleable. In this article use analog radio-over-fiber (ARoF) proposed demonstrated as viable...
The current work presents the first experimental demonstration of real-time Ethernet (ETH) trial services and 4K-Ultra High Definition (UHD) video application transmission over a 2λ Wavelength Division Multiplexing (WDM) analog Fiber-Wireless (FiWi) mmWave X-haul network, supporting dynamic flexible capacity allocation through an integrated silicon photonic Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N...
Photonic integration technologies have spread in the past decade by means of foundry models that mirror electronic-integrated circuit industry developments century. Several monolithic exist, based on silicon and III-V semiconductors. In this paper, we discuss current state forthcoming open access photonic foundries whose technology platforms are nitride material. The paper presents various foundries, alongside with supported generic process design kits. Technical features, enabled different...
This paper presents an integrated tunable hybrid multi-laser module designed to simultaneously generate multiple radiofrequency (RF) local oscillator (LO) signals through optical heterodyning. The device consists of five InP/Si3N4 lasers, each incorporating intracavity wavelength-selective filter formed by two micro-ring resonators. Through beating the wavelengths generated from three these we demonstrate simultaneous generation LO within bands crucial for satellite communications (SatCom):...
We demonstrate experimentally a bandwidth-reconfigurable mmWave Fiber Wireless (FiWi) fronthaul bus topology for spectrally efficient and flexibly reconfigurable 5G Centralized-Radio Access Networks (C-RAN). The proposed architecture includes four 1 Gb/s Intermediate Frequency over (IFoF) channels that can be allocated among two in-series Reconfigurable Optical Add/Drop Multiplexer (ROADM) integrated nodes, supporting in total 8 V-band 32-element Phased Array Antenna (PAA) terminals. ROADM...
A tolerant single etch-step passive polarization splitter on InP/InGaAsP is designed and fabricated. The device consists of a directional coupler with wide narrow waveguide. Modal birefringence the third-order modes for transverse electric (TE) magnetic (TM) polarizations employed to selectively couple one polarization. Tapering applied increase tolerances. devices are characterized, measurement results show good agreement beam-propagation-method simulations: splitting ratio larger than 95%...
In this article a selection of highlights the TriPleX™ technology LioniX is given. The basic waveguide explained with recent benchmark measurements done by University California Santa Barbara (UCSB) and Twente (UT-TE). order to show low loss transparency over wide wavelength range three examples applications in different regimes are described more detail. These Integrated Laser Beam Combiner (ILBC) XiO Photonics visible light, ringresonator sensing platform around 850 nm phased array antenna...
We propose and experimentally demonstrate the working principles of two novel microwave photonic (MWP) beamformer circuits operating with phase modulation (PM) direct detection (DD). The proposed incorporate major signal processing functionalities, namely a broadband beamforming network employing ring resonator-based delay lines an optical sideband manipulator that renders circuit outputs equivalent to those intensity-modulated MWP beamformers. These functionalities allow system employ...
The Low-Frequency Array (LOFAR) Long-Baseline Calibrator Survey (LBCS) was conducted between 2014 and 2019 in order to obtain a set of suitable calibrators for the LOFAR array. In this paper we present complete survey, building on preliminary analysis published 2016 which covered approximately half survey area. final catalogue consists 30006 observations 24713 sources northern sky, selected combination high low-frequency radio flux density flat spectral index using existing surveys (WENSS,...
Towards relieving the bandwidth limitations in 5G mobile fronthaul networks, a Fiber Wireless (FiWi) small cell architecture is presented, relying on spectrally efficient analog transport intermediate frequency over fiber (IFoF) and millimeter wave (mmWave) phased array antenna (PAA) interfaced with low-loss optical add/drop multiplexer (OADM) Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N...
This paper presents the design, fabrication, and characterization of first photonic-assisted receiver module for a Scan-on-Receive synthetic aperture radar (SCORE-SAR) intended Earth observation from space. The is hybrid photonic integrated circuit (PIC) that designed to do precise continuous beamforming-on-receive wideband signals 12 antenna elements array, synthesizing up three simultaneous beams. PIC also implements frequency-agnostic down-conversion so synthesized beams can be directly...
Two reconfigurable optical add-drop multiplexers, operating in the second or third telecom window, as well a 1x4x4 lambda-router are demonstrated. The devices have footprint less than 2 mm(2) and based on thermally tunable vertically coupled microring resonators fabricated Si(3)N(4)/SiO(2).
Data centers are continuously growing in scale and can contain more than one million servers spreading across thousands of racks; requiring a large-scale switching network to provide broadband reconfigurable interconnections low latency. Traditional data center architectures, through the use electrical packet switches multi-tier topology, has fundamental weaknesses such as oversubscription cabling complexity. Wireless intra-data interconnection solutions have been proposed deal with problem...
Analog fronthauling is currently promoted as a bandwidth and energy-efficient solution that can meet the requirements of Fifth Generation (5G) vision for low latency, high data rates energy efficiency. In this paper, we propose an analog optical fronthaul 5G architecture, fully aligned with emerging Centralized-Radio Access Network (C-RAN) concept. The proposed architecture exploits wavelength division multiplexing (WDM) technique multicarrier intermediate-frequency-over-fiber (IFoF) signal...
This paper presents a beyond 5G fronthaul network with dynamic beamforming and -steering. The proposed solution deploys optical (OBF) by combining space division multiplexing (SDM), analogue radio-over-fiber (ARoF), the novel beam forming (OBFN) technologies. From service management orchestration (MANO) point of view, also an advanced software defined networking (SDN) Network Function Virtualization (NFV) control architecture developed goal to optimally manage reconfigure physical layer...