Design and Monte Carlo Simulation of a LED-based Optic Coupler

TítuloDesign and Monte Carlo Simulation of a LED-based Optic Coupler
AutoresMontserrat Fortes, Enrique Comesaña, Guillermo Indalecio, José Rodríguez, Pablo Otero, Antonio Garcia-Loureiro, Michael Vetter
TipoComunicación para congreso
Fonte 17th International Conference on Computer Modelling and Simulation, Emmanuel College, Cambridge University (Reino Unido), IEEE Computer Society Conference Publishing Services (CPS), pp. 577-581 , 2015.
ISBN978-1-4799-8712-2
DOI10.1109/UKSim.2015.44
AbstractThe design of a multi-wavelength light source used to measure the external quantum efficiency of solar cells is presented. This low-cost optic coupler is based on the concept of integrating sphere and on the use of LEDs pulsing at different frequencies followed by a Fourier transformation of the current generated in the device under test. To obtain an accurate simulation model of the optic coupler experimental measurements were employed. Two algorithms based on Monte Carlo raytracing were tested. The first one uses a uniform random selection of the director angle and, depending on it, assigns a power to simulated rays. The second approach samples this angle randomly from a given distribution and uses an equal power for all rays. Both methods were compared in terms of their repeatability and dispersion.
Palabras chaveLight-emitting diodes; raytracing; spectral response