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  Broadband squeezing of quantum noise in a Michelson interferometer with Twin-Signal-Recycling

Thüring, A., Gräf, C., Vahlbruch, H., Mehmet, M., Danzmann, K., & Schnabel, R. (2009). Broadband squeezing of quantum noise in a Michelson interferometer with Twin-Signal-Recycling. Optics Letters, 34(6), 824-826. doi:10.1364/OL.34.000824.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-45D3-B Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-45D4-9
Genre: Journal Article

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OL34_6_2009.pdf (Publisher version), 295KB
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 Creators:
Thüring, Andre1, Author           
Gräf, Christian1, Author           
Vahlbruch, Henning1, Author           
Mehmet, Moritz1, Author           
Danzmann, Karsten1, Author           
Schnabel, Roman1, Author           
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: Twin-Signal-Recycling (TSR) builds on the resonance doublet of two optically coupled cavities and efficiently enhances the sensitivity of an interferometer at a dedicated signal frequency. We report on what we believe to be the first experimental realization of a TSR Michelson interferometer and also its broadband enhancement by squeezed light injection. The complete setup was stably locked, and a broadband quantum noise reduction of the interferometers shot noise by a factor of up to 4 dB was demonstrated. The system was characterized by measuring its quantum noise spectra for several tunings of the TSR cavities. We found good agreement between the experimental results and numerical simulations.

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 Dates: 2009
 Publication Status: Issued
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 Identifiers: eDoc: 411236
DOI: 10.1364/OL.34.000824
URI: http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-6-824
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Title: Optics Letters
Source Genre: Journal
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Pages: - Volume / Issue: 34 (6) Sequence Number: - Start / End Page: 824 - 826 Identifier: -