Las competencias matemáticas a partir de una estrategia didáctica en un ambiente de geometría dinámica

Se presenta una experiencia desarrollada en el contexto de la asignatura Práctica Educativa II del profesorado en matemática de la Facultad de Ciencias Exactas y Naturales de la Universidad Nacional del La Pampa. Dicha asignatura tiene entre sus objetivos la adquisición de competencias para diseñar unidades didácticas sobre los distintos contenidos curriculares de Matemática. La experiencia está centrada en la resolución de problemas con uso de tecnología, vivenciada por los futuros profesores para su posterior planificación y transferencia al ciclo básico de la educación secundaria. En particular se trabajó en el diseño de una actividad para la enseñanza de conceptos geométricos usando tecnología, con una mirada reflexiva al modo de plantear relaciones entre álgebra y geometría

Eight state optical flip-flop based on coupled unidirectional ring lasers with optical feedback

An eight-state optical flip-flop based on coupled unidirectional ring lasers with optical feedback is demonstrated. The flip-flop exhibits low power operation since it contains only one gain medium. The contrast ratio is over 35 dB

Optical shift register based on an optical flip-flop memory with a single active element

\u3cp\u3eWe present an optical shift register consisting of two serially connected optical flip-flop memories. The concept is demonstrated experimentally using fiber pig-tailed components.\u3c/p\u3

Towards terabit/s wavelength conversion with a single semiconductor optical amplifier and an optical bandpass filter

Summary form only given. In this work, we numerically investigate the possibility of all-optical wavelength conversion at 1 Tb/s based on a single SOA and a Gaussian optical bandpass filter. A comprehensive model is employed to carry out the simulations for the carrier dynamics in an SOA. The ultrashort pulse propagation in an SOA is modeled through a nonlinear Schrodinger equation, which also accounts for gain dispersion and group velocity dispersion

Genetic algorithm-based optical filter optimization for high speed wavelength conversion based on a semiconductor optical amplifier

This paper presents a numerical optimization of an optical filter through a genetic algorithms (GA) in the context of high speed non-inverted wavelength conversion based on a single semiconductor optical amplifier (SOA). An optical filter is critical in the SOA-based wavelength converter because it enables high-speed operation through converting the ultra-fast chirp dynamics of the probe into useful amplitude modulation