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Low-Loss Fluoride Optical Fiber Coupler for Mid-Infrared Applications
Francesco Anelli;Andrea Annunziato;Antonella Maria Loconsole;Vincenza Portosi;Solenn Cozic;Paul Le Pays du Teilleul;Sebastien Venck;Samuel Poulain;Francesco Prudenzano
Journal of Lightwave Technology
Cited by: Papers (9)
For the first time, a 2 × 2 optical fiber coupler based on indium fluoride optical fibers is designed via coupled mode theory, fabricated via fused biconical tapering technique, and characterized in the mid-infrared spectral range. A conventional glass processing system, Vytran GPX-2400, is employed for the 2 × 2 optical fiber coupler fabrication, overcoming the main limitation related to the narr...Show More
A Wideband Flexible Fabry-Perot Resonator Antenna: Inkjet-printing on Ultrathin PET Layers
Francesco Anelli;Antonella Maria Loconsole;Vincenza Portosi;Andrea Annunziato;Vito Vincenzo Francione;Francesco Prudenzano
2023 IEEE Conference on Antenna Measurements and Applications (CAMA)
Year: 2023 | Conference Paper |
Cited by: Papers (2)
In this work, a multilayer partially reflective surface is designed and optimized to improve the directivity of a coplanar waveguide fed patch antenna for conformal and wearable applications, by means of Fabry-Perot resonance. The low-profile partially reflective surface is constituted by six single side printed ultra-thin layers. The unit cell electromagnetic design has allowed obtaining a positi...Show More
Multimode Fluoroindate Optical Fiber Coupler
Francesco Anelli;Andrea Annunziato;Vincenza Portosi;Solenn Cozic;Samuel Poulain;Paul Le Pays Du Teilleul;Francesco Prudenzano
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2023 | Conference Paper |
Mid-Infrared wavelengths are attracting research attention because of its implications in a plethora of applications, including optical spectroscopy, chemical sensing, thermal imaging, light sources, and comb generation [1], [2]. However, the level of technological maturity is still limited because of the absence of the essential building blocks that are commercially available in silica optical fi...Show More
Optical Combining in Medium Infrared Wavelength Range and Its Applications
Andrea Annunziato;Francesco Anelli;Antonella Maria Loconsole;Mario Christian Falconi;Vincenza Portosi;Vito Vincenzo Francione;Francesco Prudenzano
2023 23rd International Conference on Transparent Optical Networks (ICTON)
Year: 2023 | Conference Paper |
A review on the optical combining in medium infrared wavelength range is illustrated. Moreover, details on the design, fabrication and characterization of novel combiners based on multimode step-index fluoroindate optical fibers (InF3) are given. The electromagnetic design of the combiner is carried out through modal investigation and the beam propagation method is exploited to evaluate the transm...Show More
Fabrication of Tapered Devices with Fluoride and Chalcogenide Optical Fibers for Mid-IR Applications
Francesco Anelli;Andrea Annunziato;Antonella Maria Loconsole;Vincenza Portosi;Vito Vincenzo Francione;Mario Christian Falconi;Paul Le Pays Du Teilleul;Solenn Cozic;Samuel Poulain;Francesco Prudenzano
2023 23rd International Conference on Transparent Optical Networks (ICTON)
Year: 2023 | Conference Paper |
In this paper, advancements in fabrication techniques of fused optical fiber devices for the mid-infrared spectral range are reported. Fused optical fiber devices have revolutionized optical systems. Careful monitoring and control of the fabrication process are required to ensure consistent and reliable device performance when considering fluoride and chalcogenide optical fibers. The fabrication o...Show More
Fabrication of Tapered Devices with Fluoride and Chalcogenide Optical Fibers for Mid-IR Applications
Francesco Anelli;Andrea Annunziato;Antonella Maria Loconsole;Vincenza Portosi;Vito Vincenzo Francione;Mario Christian Falconi;Paul Le Pays Du Teilleul;Solenn Cozic;Samuel Poulain;Francesco Prudenzano
Year: 2023 | Conference Paper |
Design of a Pr3+:InF3 Fiber Laser Pumped in near-IR and Emitting at 4 micron Wavelength
Antonella Maria Loconsole;Andrea Annunziato;Francesco Anelli;Vito Vincenzo Francione;Vincenza Portosi;Mario Christian Falconi;Francesco Prudenzano
2023 23rd International Conference on Transparent Optical Networks (ICTON)
Year: 2023 | Conference Paper |
The design of a novel continuous wave laser, based on a fluoroindate fiber, doped with praseodymium, is proposed. The laser is optimized to emit a beam at λs= 4 μm, when pumped at λp= 1500 nm, by employing a homemade computer code and by considering measured spectroscopical parameters taken from literature. Several simulations are performed by varying the laser cavity length and the output mirror ...Show More
Wideband antipodal Vivaldi antenna with metalenses for GPR applications
Antonella Maria Loconsole;Vincenza Portosi;Vito Vincenzo Francione;Giuseppe Roberto;Francesco Anelli;Francesco Prudenzano
In this work, an antipodal Vivaldi antenna optimized with different metalenses for wideband applications is designed. This light-weighted antenna is wideband and exhibits good gain in the whole bandwidth. The employment of metalenses with variable metamaterials dimensions allows to increase maximum gain of about ΔG = 2 dB in the frequency band f = 7 – 10 GHz, without reducing the working bandwidth...Show More
Design of Electromagnetic Shielding for Food Pasteurization via Corrugated Waveguide and Graphite Rings
Francesco Anelli;Vincenza Portosi;Antonella Maria Loconsole;Alexandra Lacatena;Alessandro Quatela;Dario Laneve;Antonio Diaferia;Francesco Prudenzano
2022 Microwave Mediterranean Symposium (MMS)
Year: 2022 | Conference Paper |
An electromagnetic shielding, operating at f= 2.45 GHz, is designed in the context of food pasteurization treatment. The industrial belt of the plant implies an undesired leakage aperture of the microwave heating chamber, fed by multiple magnetrons to raise the temperature. The shielding consists of a one-wall uniformly corrugated rectangular waveguide followed by an array of graphite rings acting...Show More
Refinement of a Microwave Needle Applicator for Cancer Therapy via Metamaterials
Vincenza Portosi;Antonella Maria Loconsole;Marcello Valori;Valeria Marrocco;Francesco Bonelli;Giuseppe Pascazio;Vito Lampignano;Antonella Fasano;Francesco Prudenzano
The insertion of a metamaterial (MTM) lens based on Closed Loop Resonator (CLR) into a needle microwave applicator is investigated for a more efficient hyperthermia cancer therapy. Several geometries are designed and optimized, Closed Circular-Ring Resonator (CCRR) with circular loops and Closed Square-Ring Resonator (CSRR) with square loops, with one or more concentric loops. The MTM lens is bend...Show More
Incoherent Multi-Wavelength Emission in the Wavelength Range 1500-2100 nm
Antonella Maria Loconsole;Mario Christian Falconi;Vincenza Portosi;Andrea Annunziato;Stefano Taccheo;Francesco Prudenzano
2021 AEIT International Annual Conference (AEIT)
Year: 2021 | Conference Paper |
Cited by: Papers (1)
In this paper, an innovative incoherent light source, based on the amplified spontaneous emission (ASE) phenomenon, is proposed. It is pumped at 980 nm and is based on a Tm:Er:Yb:Ho co-doped germanate glass fiber. The simulation predicts multi-wavelength emission peaks in a bandwidth of over 543 nm, in the wavelength range 1500-2100 nm. A numerical home-made solver, based on a nonlinear rate equat...Show More
Optimization of low-cost needle microwave applicators for cancer therapy
Vincenza Portosi;Antonella M. Loconsole;Marcello Valori;Valeria Marrocco;Francesco Bonelli;Giuseppe Pascazio;Vito Lampignano;Antonella Fasano;Roberto Lorusso;Francesco Prudenzano
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
Year: 2021 | Conference Paper |
In this paper, the design and optimization of a low-cost needle microwave applicator for cancer therapy is illustrated. An adequately sized coaxial antenna inserted into a thin hypodermic needle, is optimized in the Industrial, Scientific and Medical frequency band (ISM) at f = 2.45 GHz. An extensive feasibility investigation is performed in order to obtain an efficient, mini-invasive and low-cost...Show More
Numerical Design of a Gain-Switched Pulsed Laser at 3.92 μm Wavelength Based on a Ho3+-Doped Fluoroindate Fiber
Antonella Maria Loconsole;Mario Christian Falconi;Vincenza Portosi;Francesco Prudenzano
Journal of Lightwave Technology
Cited by: Papers (23)
A gain-switched pulsed laser based on a commercial, heavily holmium-doped fluoroindate glass fiber, is designed to emit in the middle-infrared range, at the wavelength λ = 3.92 μm. The laser, pumped at λ = 888 nm, is modeled by a six-level system, by taking into account experimental spectroscopic parameters, to identify a feasible laser configuration. An output signal peak power of about Pspeak = ...Show More
Low-Cost Mini-Invasive Microwave Needle Applicator for Cancer Thermal Ablation: Feasibility Investigation
Vincenza Portosi;Antonella Maria Loconsole;Marcello Valori;Valeria Marrocco;Irene Fassi;Francesco Bonelli;Giuseppe Pascazio;Vito Lampignano;Antonella Fasano;Francesco Prudenzano
The design and characterization of a low-cost mini-invasive needle applicator prototype for hyperthermia therapy of cancer are performed, after the investigation of different approaches, focused to increase the device feasibility and miniaturization and to improve patient wellness. The needle applicator is a coaxial antenna operating at frequency f=2.45 GHz in the Industrial, Scientific, and Medic...Show More
Wideband optical amplifier based on Tm:Er:Yb:Ho co-doped germanate glass
Antonella Maria Loconsole;Mario Christian Falconi;Dario Laneve;Vincenza Portosi;Stefano Taccheo;Francesco Prudenzano
2020 Italian Conference on Optics and Photonics (ICOP)
Year: 2020 | Conference Paper |
Cited by: Papers (1)
In this paper, an innovative Tm:Er:Yb:Ho co-doped germanate fiber glass amplifier, pumped at λp = 980 nm, is designed and optimized, to obtain a wideband/three band amplification in the wavelength range λ = 1.4 - 2.1 μm. A preliminary investigation has shown the dependence of the optical gain on the dopant concentrations, the fiber length and the pump power. To obtain a suitable three-band gain, a...Show More
Tm:Er:Yb:Ho amplified spontaneous emission source operating from 1480 nm to 2100 nm
Antonella Maria Loconsole;Mario Christian Falconi;Dario Laneve;Vincenza Portosi;Stefano Taccheo;Francesco Prudenzano
2020 Italian Conference on Optics and Photonics (ICOP)
Year: 2020 | Conference Paper |
A complete theoretical model of an amplified spontaneous emission (ASE) source based on a Tm:Er:Yb:Ho co-doped germanate glass is developed. It is based on a nonlinear rate equations system, together with the power propagation equations for the pump and the ASE beams. The device is pumped at 980 nm. A particle swarm optimization (PSO) algorithm is used to find the best combination of the four dopa...Show More
600 nm-Wide Band ASE Optical Source Exploiting a Tm:Er:Yb:Ho Co-Doped Germanate Fiber
Mario Christian Falconi;Antonella Maria Loconsole;Vincenza Portosi;Stefano Taccheo;Francesco Prudenzano
2020 22nd International Conference on Transparent Optical Networks (ICTON)
Year: 2020 | Conference Paper |
Cited by: Papers (1)
In this paper, the numerical model of a 980-nm pumped optical fiber source exploiting the amplified spontaneous emission (ASE) phenomenon is illustrated. The device is based on a Tm:Er:Yb:Ho co-doped germanate fiber and allows incoherent light emission in the 1500-2100 nm wavelength range. The model exploits the rate equations approach and takes into account the energy transfer phenomena between d...Show More
Mid-Infrared Supercontinuum Generation in ZBLAN Fluoride/Fluoroindate Fibers at Wavelength $\lambda=2.9\ \mu \mathrm{m}$
Giovanna Ricchiuti;Mario Christian Falconi;Antonella Maria Loconsole;Vincenza Portosi;Solenn Cozic;Samuel Poulain;Francesco Prudenzano
2020 22nd International Conference on Transparent Optical Networks (ICTON)
Year: 2020 | Conference Paper |
In this paper, the optical properties of available-on-market fluoride glass fibers are examined in order to understand their potentialities in a lot of application areas. The investigation is made with reference to several glass characteristics, in order to appreciate how the change of ZBLAN chemical composition can be exploited to tailor the refractive index and the dispersion. Higher order dispe...Show More
Feasibility investigation of low-cost microwave needle applicator for thermal ablation cancer therapy
Vincenza Portosi;Antonella Maria Loconsole;Marcello Valori;Valeria Marrocco;Francesco Bonelli;Giuseppe Pascazio;Vito Lampignano;Antonella Fasano;Roberto Lorusso;Francesco Prudenzano
2020 IEEE International Symposium on Medical Measurements and Applications (MeMeA)
Year: 2020 | Conference Paper |
Cited by: Papers (3)
Microwave (MW) applicators are widely used in medicine for thermal ablation / hyperthermia therapy in cancer treatment. Their goal is a proper local temperature increment of the irradiated tissue, allowing ablation or necrosis of tumoral cells. In this work, the design and fabrication of a low-cost mini-invasive needle applicator for hyperthermia cancer therapy is illustrated after the investigati...Show More
Feasibility investigation of low-cost microwave needle applicator for thermal ablation cancer therapy
Vincenza Portosi;Antonella Maria Loconsole;Marcello Valori;Valeria Marrocco;Francesco Bonelli;Giuseppe Pascazio;Vito Lampignano;Antonella Fasano;Roberto Lorusso;Francesco Prudenzano
Year: 2020 | Conference Paper |
Design of Electromagnetic Bandgap Cavities for High-Gradient On-Axis Coupled-Cavity Linear Accelerators
Dario Laneve;Vincenza Portosi;Mario Christian Falconi;Giovanni Rutigliani;Raffaele Andrea Prisco;Vincenzo Dimiccoli;Francesco Prudenzano
The design of suitable electromagnetic bandgap (EBG) cavities has been performed by means of a hybrid numerical/analytical approach implemented via a homemade code with the aim of optimizing a novel accelerating structure for proton linear accelerators (linacs). In particular, a 3-GHz proton linac tank with on-axis coupled EBG cavities closed with full-end cells has been optimized. The proton beam...Show More
Design of a Multi-Wavelength Fiber Laser Based on Tm:Er:Yb:Ho Co-Doped Germanate Glass
Mario Christian Falconi;Dario Laneve;Vincenza Portosi;Stefano Taccheo;Francesco Prudenzano
Journal of Lightwave Technology
Cited by: Papers (31)
In this article, for the first time, an efficient multiwavelength fiber laser based on a Tm:Er:Yb:Ho co-doped germanate glass, optically pumped at 980 nm wavelength and simultaneously emitting at 1550 nm, 1800 nm and 2050 nm wavelengths, is designed and optimized. An exhaustive model, taking into account the energy transfer phenomena between different rare earths, is developed. The device behavior...Show More
Fluoride Glass Pulsed Laser in Middle Infrared Wavelength Range
Mario Christian Falconi;Dario Laneve;Caterina Clemente;Giovanna Ricchiuti;Antonella Loconsole;Vincenza Portosi;Antonio Crudele;Gianluca Galzerano;Francesco Prudenzano
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)
Year: 2019 | Conference Paper |
Among all the techniques for achieving pulsed emission in rare-earth-doped fiber lasers, gain switching is particularly simple. It consists in modulating the optical gain of the active medium by employing a pulsed input pump with proper amplitude, repetition rate and duty cycle. In this work, a dysprosium-doped ZBLAN fiber is considered in order to investigate the generation of optical pulses at λ...Show More
Design of Ultra-Wideband Yb:Er:Tm:Ho Co-Doped Germanate Glass Devices
Mario Christian Falconi;Dario Laneve;Vincenza Portosi;Stefano Taccheo;Francesco Prudenzano
2019 21st International Conference on Transparent Optical Networks (ICTON)
Year: 2019 | Conference Paper |
Cited by: Papers (3)
An Yb:Er:Tm:Ho co-doped germanate glass is considered to develop an exhaustive mathematical model of a 980-nm-pumped fiber laser enabling high efficient, multi-wavelength emission at 1550 nm, 1800 nm and 2050 nm. The model is based on the nonlinear rate equations and takes into account the different energy transfer phenomena between the rare earths. Several simulations are performed and the behavi...Show More
Multiple rhombus monopole antenna
Thomas Landeau;Onofrio Losito;Giuseppe Palma;Vincenza Portosi;Alain Jouanneaux;Franceso Prudenzano
Multiband and wideband monopoles constitute a research topic strongly motivated by the growing frequency spectrum needs in the area of wireless communication applications. In this paper, a multi-band, multiple rhombus shaped, monopole antenna is proposed as an alternative to the circular/elliptical disk/ring monopoles for broadband application. The simulation results are in good agreement with the...Show More
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