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Squeezing more from a quantum nondemolition measurement

Buchler, Benjamin; Lam, Ping Koy; Bachor, Hans; Andersen, U; Ralph, Timothy Cameron


A method based on electro-optic control was demonstrated for the enhancement of a nonideal quantum nondemolition (QND) system. A 700 mW Nd:YAG laser at 1064 nm was used to pump a second-harmonic generator (SHG). The 532 nm green light from the SHG was used to pump the optical parametric amplifier cavity. Results showed that the electro-optic feedforward loop improved the signal transfer efficiency of the QND system.

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics


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