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Your search keyword '"Matias F. Salvide"' showing total 4 results
Start Over Author "Matias F. Salvide" Topic ciencias fisicas
4 results on '"Matias F. Salvide"'

1. High frequency continuous birefringence-induced oscillations in spin-polarized vertical-cavity surface-emitting lasers

Author

M.S. Torre, Nianqiang Li, Antonio Hurtado, Kevin Schires, Ian D. Henning, Matias F. Salvide, Michael J. Adams, and Hadi Susanto

Subjects
Physics, business.industry, Ciencias Físicas, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Atomic and Molecular Physics, and Optics, Astronomía, 010309 optics, QC350, Optics, 0103 physical sciences, Induced oscillations, SPIN-VCSELS, BIREFRINGENCE-OSCILLATIONS, 0210 nano-technology, business, Spin relaxation, CIENCIAS NATURALES Y EXACTAS
Abstract

Sustained, large amplitude and tunable birefringenceinduced oscillations are obtained in a spin-vertical cavity surface-emitting laser (spin-VCSEL). Experimental evidence is provided using a spin-VCSEL operating at 1300 nm, under continuous-wave optical pumping and at room temperature. Numerical and stability analyses are performed to interpret the experiments and to identify the combined effects of pump ellipticity, spin relaxation rate, and cavity birefringence. Importantly, the frequency of the induced oscillations is determined by the device's birefringence rate, which can be tuned to very large values. This opens the path for ultrafast spin-lasers operating at record frequencies exceeding those possible in traditional semiconductor lasers and with ample expected impact in disparate disciplines (e.g., datacomms, spectroscopy). Fil: Torre, Maria Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina Fil: Susanto, H.. University of Essex; Reino Unido Fil: Li, Nianqiang. University of Essex; Reino Unido Fil: Schires, K.. Université Paris-Saclay; Argentina. Centre National de la Recherche Scientifique; Francia Fil: Salvide, Matias. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina Fil: Henning, I. D.. University of Essex; Reino Unido Fil: Adams, M. J.. University of Essex; Reino Unido Fil: Hurtado, A.. University of Strathclyde; Reino Unido

Published
2017

2. Dynamics of Normal and Reverse Polarization Switching in 1550-nm VCSELs Under Single and Double Optical Injection

Author

Ian D. Henning, M.S. Torre, Antonio Hurtado, Matias F. Salvide, and Michael J. Adams

Subjects
VCSELS, Materials science, Optical fiber, business.industry, TK, Ciencias Físicas, Optical polarization, Field strength, Biasing, Polarization switching, Polarization (waves), Optical switch, Atomic and Molecular Physics, and Optics, law.invention, Vertical-cavity surface-emitting laser, Laser linewidth, law, Optoelectronics, Optical injection, Electrical and Electronic Engineering, business, QC, CIENCIAS NATURALES Y EXACTAS, Óptica
Abstract

Polarization switching (PS) in 1550nm-VCSELs under single and double pulsed polarized optical injection is investigated experimentally and in theory. ‘Normal’ and ‘reverse’ PS were achieved, respectively, when the device was subject to single and double optical injection. Speed operation enhancement is observed for ‘reverse’ PS under double polarized optical injection. Also, the minimum injection power requirements for both ‘normal’ and ‘reverse’ PS have been analyzed showing significant differences for the two investigated cases. Furthermore, we have also investigated numerically the influence of important system parameters, such as the normalized bias current, the injection field strength and the linewidth enhancement factor in the optimal operation conditions for both types of PS. Overall good agreement between theory and experiments is found. Fil: Salvide, Matias. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Torre, Maria Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Henning, Ian D.. University Of Essex; Reino Unido Fil: Adams, Michael J.. University Of Essex; Reino Unido Fil: Hurtado, Antonio. University Of Strathclyde; Reino Unido

Published
2015

3. Polarization switching and hysteresis in vertical-cavity surface-emitting lasers subject to orthogonal optical injection

Author

M.S. Torre, Cristina Masoller, Matias F. Salvide, Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear, and Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers

Subjects
Semiconductor laser, Bistability, bistability, Ciencias Físicas, Optical bistability, Physics::Optics, law.invention, polarization switching, nonlinear dynamics, Optics, law, stochastic logic gate, semiconductor-laser, Electrical and Electronic Engineering, optical injection, orthogonal injection, Óptica, Física::Física de l’estat sòlid::Semiconductors [Àrees temàtiques de la UPC], Physics, business.industry, Condensed Matter Physics, Polarization (waves), Laser, Atomic and Molecular Physics, and Optics, Vertical-cavity surface-emitting lasers (VCSELs), Biestabilitat òptica, Optoelectronics, Làsers de semiconductors, business, CIENCIAS NATURALES Y EXACTAS
Abstract

We study polarization switching and hysteresis in a vertical-cavity surface-emitting laser (VCSEL) subject to an orthogonal optical injection, such that the polarization of the injected light is perpendicular to that of the free-running VCSEL. We use the framework of the spin-flip model to characterize the polarization state of the VCSEL as a function of the frequency detuning. With appropriated injection conditions, the orthogonal polarization turns on and locks to the injected field. Increasing and decreasing the detuning across the two locking boundaries results either in narrow or wide hysteresis cycles, or even in irreversible switching. These results are in a good agreement with recent experimental observations. Fil: Salvide, Matias. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Masoller, Cristina. Universidad Politecnica de Catalunya; España Fil: Torre, Maria Susana. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Published
2014

4. All-optical stochastic logic gate based on a VCSEL with tunable optical injection

Author

Cristina Masoller, Matias F. Salvide, and M.S. Torre

Subjects
Bistability, Ciencias Físicas, Physics::Optics, Optical switch, Vertical-cavity surface-emitting laser, Optical bistability, Semiconductor laser theory, law.invention, purl.org/becyt/ford/1 [https], Optics, law, POLARIZATION BISTABILITY, Electrical and Electronic Engineering, Óptica, Physics, business.industry, purl.org/becyt/ford/1.3 [https], Condensed Matter Physics, Polarization (waves), Laser, Atomic and Molecular Physics, and Optics, OPTICAL INJECTION, VERTICAL CAVITY SURFACE EMITTING, Optoelectronics, business, Tunable laser, CIENCIAS NATURALES Y EXACTAS, POLARIZATION SWITCHING
Abstract

We study the dynamics of a vertical-cavity surface-emitting laser (VCSEL) with continuous-wave (cw) orthogonal optical injection from a tunable laser. We use the dynamical properties of polarization bistability and the interplay with internal or external noise to demonstrate numerically a reliable logic output to two logic inputs encoded in the optical frequency of the injected light. This all-optical configuration is more than ten times faster than the electro-optical implementation and has the advantage of operating at constant injection power. Fil: Salvide, Matias. Universidad Nacional del Centro de la Provincia de Bs.as.. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina; Fil: Masoller, Cristina. Universidad Politecnica de Catalunya; España; Fil: Torre, Maria Susana. Universidad Nacional del Centro de la Provincia de Bs.as.. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina

Published
2013

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