A5025596276- Laser-Matter Interactions and Applications
- Quantum Information and Cryptography
- Quantum optics and atomic interactions
- Advanced Optical Sensing Technologies
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Mechanical and Optical Resonators
- Random lasers and scattering media
- Molecular spectroscopy and chirality
- Spectroscopy and Quantum Chemical Studies
- Optical Network Technologies
- Glass properties and applications
- Photonic and Optical Devices
- Phase-change materials and chalcogenides
- Semiconductor Lasers and Optical Devices
- Photonic Crystal and Fiber Optics
- Nonlinear Optical Materials Studies
Universidad de Guanajuato
2007-2018
Universidade Federal de Minas Gerais
2016
University of Concepción
2007
Centro de Investigaciones en Optica
2004
We propose an experimental setup for discriminating four linearly independent nonorthogonal symmetric quantum states. The is based on linear optics only and can be configured to implement both optimal unambiguous state discrimination [Chefles Barnett, Phys. Lett. A 250, 223 (1998)] minimum error discrimination. In cases, the characterized by success probability. generalized case of among $N$ also study between two incoherent superpositions this case, achieves probability in as well
Geometrical and topological phases play a fundamental role in quantum theory. Geometric have been proposed as tool for implementing unitary gates computation. A fractional phase has recently discovered bipartite systems. The dimension of the Hilbert space determines entangled qudits under local operations. Here we investigate acquired by photonic qudits. Photon pairs prepared spatial are operated inside Sagnac interferometer two-photon interference pattern reveals fringes shifts when...
We report on the use of Z-scan technique with a beam composed two modes, to probe nonlinear optical properties phosphate glasses doped Er$^{3+}$-Yr$^{3+}$ and silver nanoparticles. Understanding linear these materials is crucial evaluate if they are candidates be used as gain media in lasers or amplifiers. Experiments carried out by implementing open-aperture bimodal laser pumping ($LG_{00}$ $LG_{20}$) at 908.6 nm. The analysis performed using simplifiedmodel that incorporates absorption...
We study the chronocyclic character, i.e. joint temporal and spectral properties, of single-photon constituents photon pairs generated by spontaneous parametric down conversion. In particular we how single including purity chirp, depend on pair type signal-idler correlations level pump chirp.
We present a theoretical analysis of the process spontaneous parametric down conversion (SPDC) in nonlinear crystal characterized by linearly-chirped χ (2) grating along direction propagation. Our leads to an expression for joint spectral amplitude, based on which we can derive various spectral–temporal properties photon pairs and heralded single photons obtained from pairs, including: The single-photon spectrum (SPS), chronocyclic Wigner function (CWF) Schmidt number. simulations that are...
We consider crystal chirp effects on SPDC when pumping at 800 nm.The typical distribution produced in frequency-momentum space is a pop tab-like structure which turns out to be suitable for the implementation of versatile light sources.Our analyzes effect internal and external parameters process; former we include length, while latter temperature, as well pump beam properties.We report evidence appropriateness from chirped crystals manipulate frequency transverse momentum properties...
We report on a new type of cladding-pumped neodymium-doped fiber which enables strong ASE emission at the wavelength region 940 nm with highly reduced in four-level transition 1060 when is pumped by an 806 source. This source delivers total power 60 <i>mW</i> from 500 mW absorbed pump power. The arrangement setup consisted diode emitting output 1.5 W, collimated and focused lenses dichroic mirror. broadband neodymium was measured to be 25 nm. Moreover, numerical simulation for also discussed.