Abstract
Photon number probabilities for a single squeezed mode can exhibit sub-Poissonian or super-Poissonian statistics and can display sharp oscillations in appropriate conditions. We consider photocount probabilities for cw squeezed light occupying a single transverse mode. The squeezing spectrum is assumed to be flat over a bandwidth B, centered at optical frequency Ω/2π. We compute single-fold photoelectron probabilities for a counting interval of duration T. We proceed by decomposing the single transverse mode into a complete set of longitudinal wave-packet modes, defined in terms of prolate spheroidal wave functions. Each of these wave-packet modes is in a separate squeezed state. The Kelley-Kleiner photocount probability can then be written in terms of single-mode photon-number probabilities for these wave packet modes, which are detected with varying efficiencies. We need consider only a finite number of modes, because only about BT of the modes have high enough efficiency to contribute significantly to the photocount probability.
© 1989 Optical Society of America
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