Abstract

This paper revises the broadband-filter method originally proposed by Wyszecki to evaluate the relative spectral responsivity of photodetectors. The new mathematical procedure consists of representing the responsivity curve by a spline function to reduce the number of free parameters and to preserve the approximation accuracy. Consequently, performance of the calculated spectral responsivity vs experimental errors turns out to be satisfactory. Extended simulated examples show the capabilities of this new approach.

© 1983 Optical Society of America

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