We measured the time-domain quantum statistics of a pulsed, high-repetition-rate optical field by balanced homodyne detection. The measuring apparatus discriminates the time scales on which intrinsic quantum fluctuations prevail from those scales for which technical noise is overwhelming. A tomographic reconstruction of weak coherent states with various average photon numbers demonstrates the potential ability of the system to measure high-repetition-rate, time-resolved signals. Possible extensions to other physical situations are discussed.
© 2002 Optical Society of America
Alessandro Zavatta, Marco Bellini, Pier Luigi Ramazza, Francesco Marin, and Fortunato Tito Arecchi, "Time-domain analysis of quantum states of light: noise characterization and homodyne tomography," J. Opt. Soc. Am. B 19, 1189-1194 (2002)