D. Milanese

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Phosphate glass fibres with composition 50P(2)O(5)-30CaO-9Na(2)O-3SiO(2)-3MgO-(5-x)K(2)O-xTiO(2)mol.% (x=0, 2.5, 5, respectively coded as TiPS(0), TiPS(2.5) and TiPS(5)) were drawn following the preform drawing approach. A 20-day solubility test in bi-distilled water was carried out on glass fibres with different compositions and diameters ranging between(More)
The topic of this review is a summary of the photonics research currently performed at the Material Science and Chemical Engineering Department at Politecnico di Torino, with an emphasis on novel tellurite glasses and nanocluster doped silica for photonics. The fabrication and characterization of novel tellurite glasses and their optical fibers, with the(More)
A tellurite optical fiber doped with Er<sup>3+</sup> and Ce<sup>3+</sup> ions was designed and fabricated with the aim of assessing its suitability as laser and optical amplifier operating at 1550 nm, compatible with silica fiber standard dimensions. High-quality optical fibers, with an attenuation loss of 1.0 dB/m at 1320 nm, were obtained featuring a(More)
The results of the numerical modeling of the transmittance of an all-solid photonic band gap fiber are presented. For the modeling, a vectorial &#x201C;wide-angle&#x201D; Fourier transform based beam propagation method is applied. The actual fiber structure, having morphological deformations of a hexagonal lattice, is considered. The coexistence of(More)
Rare earth doped fiber lasers for emission in the infrared wavelength region above 1.55 micron are of great interest for several applications, including eye-safe LIDAR and DIAL systems for defence applications [1]. In particular single frequency sources emitting above 2 micron would allow longer coherent length and thus better sensitivity for coherent(More)
Summary form only given. In numerous laser and optical amplifier engineering optimization problems, the prime design criteria are the device output power and the overall gain. The amount of pump power available is usually limited and fibre parameters such as core dimensions and numerical aperture are set for achieving minimum coupling losses. With this(More)
The aggregation and solubility of asphaltenes are studied by classical molecular dynamics simulations. Average three-dimensional atomistic models are built on the basis of experimental data for the asphaltenes from a series of crude oil samples. The simulation of two such asphaltene models in four different solvents puts into evidence the formation of(More)
In this invited proceeding, we report our latest results on the development of Er<sup>3+</sup> doped phosphate glass-ceramics. Those new glass-ceramics were processed using different techniques, such as direct doping of particles into the glass melt and glass-ceramics methods. First, we explain the challenges to balance the survival and dispersion of(More)
In this paper, recent investigation on Ce-doped fibres is presented and for the first time, parallel irradiation with high intensity photons in the NIR, UV, X-Ray and gamma ray wavelength regions was performed in order to study the materials structure and its relationship with photodarkening. A set of preform core samples are prepared with appropriate Al/Yb(More)
The Faraday effect of a tellurite glass in the bulk and fibre form was investigated for magneto-optic applications. Polarization analysis showed that an optical beam linearly polarized at the multimode fibre input changed to elliptically polarized after propagating down the fibre and the result was compared with a standard silica optical fibre. However, the(More)