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JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 24, 期 12, 页码 2972-2978出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.24.002972
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I present measurements of the degree of second-order coherence g((2))(0) for spontaneous parametric downconversion fields and discuss the differences between two-detector (unconditional) and three-detector (conditional) measurements of g((2))(0). An emphasis is placed on comparing measurements made using time-to-amplitude converters (TACs) to those made using a logic circuit, illustrating how the TAC measurements are adversely influenced by dead time effects. Finally, I show how the detrimental effects of dead time when using TACs can be mitigated by renormalizing the measurement results. (C) 2007 Optical Society of America.
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