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  Coherent control of broadband vacuum squeezing

Chelkowski, S., Vahlbruch, H., Danzmann, K., & Schnabel, R. (2007). Coherent control of broadband vacuum squeezing. Physical Review A, 75: 043814. doi:10.1103/PhysRevA.75.043814.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4973-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-4974-0
Genre: Journal Article

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 Creators:
Chelkowski, Simon1, 2, Author
Vahlbruch, Henning2, Author              
Danzmann, Karsten2, Author              
Schnabel, Roman2, Author              
Affiliations:
1AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24009              
2Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: We present the observation of optical fields carrying squeezed vacuum states at sideband frequencies from 10 Hz to above 35 MHz. The field was generated with type-I optical parametric oscillation below threshold at 1064 nm. A coherent, unbalanced classical modulation field at 40 MHz enabled the generation of error signals for stable phase control of the squeezed vacuum field with respect to a strong local oscillator. Broadband squeezing of approximately −4 dB was measured with balanced homodyne detection. The spectrum of the squeezed field allows a quantum noise reduction of ground-based gravitational wave detectors over their full detection band, regardless of whether homodyne readout or radio-frequency heterodyne readout is used.

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 Dates: 2007
 Publication Status: Published in print
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 Identifiers: eDoc: 316960
URI: http://link.aps.org/abstract/PRA/v75/e043814
Other: arXiv:0704.3796
DOI: 10.1103/PhysRevA.75.043814
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Title: Physical Review A
Source Genre: Journal
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Pages: - Volume / Issue: 75 Sequence Number: 043814 Start / End Page: - Identifier: -