Squeezing more from a quantum nondemolition measurement

Ben C. Buchler*, Ping Koy Lam, Hans A. Bachor, Ulrik L. Andersen, Timothy C. Ralph

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Article number011803
    Pages (from-to)118031-118034
    Number of pages4
    JournalPhysical Review A
    Volume65
    Issue number1
    Publication statusPublished - Jan 2002

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