Dispositivo para la transformacion de energia solar concentrada que comprende un dispositivo laser que comprende a su vez: un medio activo para la absorcion total o parcial del espectro solar, un primer espejo reflectante, un segundo espejo reflectante, un primer revestimiento del nucleo, un segundo revestimiento, donde en el dispositivo laser el medio activo es un nucleo que contiene una seccion dopada, el primer espejo reflectante es transparente con sustancias capaces de absorber el espectro

The invention relates to a device for transforming concentrated solar energy, comprising a photovoltaic cell (30) and a laser device (20) that has a first reflective mirror (5) suitable for the input of solar radiation (8) and a second reflective mirror (6) suitable for the output of a laser beam (10), the first reflective mirror (5) being reflective in the input wavelength of the laser beam (10) and transparent to the entire solar spectrum, and the second reflective mirror (6) being partially reflective in the output wavelength of the laser beam (10), reflective in the interval of the absorbed solar spectrum, and transparent in the wavelengths separate from the above-mentioned wavelengths and from the output wavelength of the laser beam (10). Said device comprises a core (1) doped with substances for the full or partial absorption of the solar spectrum, and two coatings (2, 3).