Title :
High efficiency conversion of laser energy and its application to optical power transmission
Author :
Beaumont, B. ; Guillaume, J.C. ; Vilela, M.F. ; Salètes, A. ; Verie, C.
Author_Institution :
Lab. de Phys. du Solide et Energie Solaire, CNRS, Valbaonne, France
Abstract :
The authors address several aspects of the optical power transmission concept: the modeling of monochromatic conversion efficiency versus matched bandgap of a photovoltaic (PV) cell, parameterized as a function of illumination intensity; the selection criteria of the suitable semiconductors which are expected to have the highest PV conversion efficiency for the various applications; laboratory experimental study using an (Al,Ga)As laser beam transmitted through an optical fiber: a GaAs-based PV cell, designed for being set up at the optical fiber extremity, has been grown by MOVPE and has demonstrated an efficiency of 52.8% under 14-W/cm2 illumination. Several future applications, concerning transmission of optical power in space and from space, or through optical fiber in terrestrial utilizations, are discussed
Keywords :
III-V semiconductors; gallium arsenide; laser beam applications; optical fibres; power transmission; solar cells; 52.8 percent; AlGaAs; GaAs solar cell; MOVPE; illumination intensity; laser energy; matched bandgap; monochromatic conversion efficiency; optical power transmission; solar cell; space power; Fiber lasers; Laboratories; Laser modes; Lighting; Optical fibers; Photonic band gap; Photovoltaic systems; Power transmission; Semiconductor lasers; Solar power generation;
Conference_Titel :
Photovoltaic Specialists Conference, 1991., Conference Record of the Twenty Second IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-87942-636-5
DOI :
10.1109/PVSC.1991.169454
