Abstract

We analyze a low-intensity square-wave modulated light signal by measuring the moment-generating function of the number of photopulses, Q_n(s, T). The behavior of the experimental errors in the determination of the period and the modulation factor of the signal is studied by means of a theoretical error model. A set of experimental measurements was carried out, and the results found through the Q_n(s, T) measurement and by the normalized second-order factorial moment n⁽²⁾(T) are compared.

© 1992 Optical Society of America

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