Volume 36, Number 5, November II 1996
|Page(s)||361 - 366|
|Section||Classical areas of phenomenology|
|Published online||01 September 2002|
Quantum nondemolition measurements and generation of individually squeezed twin beams by a degenerate optical parametric amplifier
Fakultät für Physik, Universität Konstanz - D-78434 Konstanz,
Accepted: 30 September 1996
A novel scheme for continuous-wave quantum nondemolition (QND) detection of optical-amplitude quadratures is implemented using a degenerate optical parametric amplifier. A monolithic ring resonator with optimizable frustrated total internal reflection coupling is used. Signal and meter output beams are squeezed by 0.5 dB and 2.2 dB, and 38% correlated. This implies the first realization of individually squeezed twin beams, as well as quantum state preparation ability for both output beams. A quantum optical tap efficiency is achieved. The all-solid-state system was completely stabilized and continuously operated as a QND device for up to 36 hours.
PACS: 42.50-p – Quantum optics
© EDP Sciences, 1996
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