| Issue |
Europhys. Lett.
Volume 36, Number 5, November II 1996
|
|
|---|---|---|
| Page(s) | 361 - 366 | |
| Section | Classical areas of phenomenology | |
| DOI | https://doi.org/10.1209/epl/i1996-00236-0 | |
| 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,
Germany
Received:
4
July
1996
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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