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Journal Article

Coherent Control of Vacuum Squeezing in the Gravitational-Wave Detection Band

MPS-Authors
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Vahlbruch,  Henning
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

Chelkowski,  Simon
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40457

Hage,  Boris
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

Franzen,  Alexander
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40437

Danzmann,  Karsten
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons40490

Schnabel,  Roman
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

PRL97_011101.pdf
(Publisher version), 324KB

vahlbruch02.pdf
(Any fulltext), 372KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Vahlbruch, H., Chelkowski, S., Hage, B., Franzen, A., Danzmann, K., & Schnabel, R. (2006). Coherent Control of Vacuum Squeezing in the Gravitational-Wave Detection Band. Physical Review Letters, 97: 011101. doi:10.1103/PhysRevLett.97.011101.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-4D51-B
Abstract
We propose and demonstrate a coherent control scheme for stable phase locking of squeezed vacuum fields. We focus on sideband fields at frequencies from 10 Hz to 10 kHz, which is a frequency regime of particular interest in gravitational-wave detection and for which conventional control schemes have failed so far. A vacuum field with broadband squeezing covering this entire band was produced using optical parametric oscillation and characterized with balanced homodyne detection. The system was stably controlled over long periods utilizing two coherent but frequency shifted control fields. In order to demonstrate the performance of our setup the squeezed field was used for a nonclassical sensitivity improvement of a Michelson interferometer at audio frequencies.