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  Squeezed-light Lasers for Gravitational Wave Observatories

Khalaidovski, A., Vahlbruch, H., & Schnabel, R. (2015). Squeezed-light Lasers for Gravitational Wave Observatories. In Proceedings of the MG13 Meeting on General Relativity (pp. 2040-2042). World Scientific.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-D313-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-D314-A
Genre: Conference Paper

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 Creators:
Khalaidovski, Alexander1, Author              
Vahlbruch, Henning1, Author              
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: A fundamental noise source limiting the measurement sensitivity of interferometric gravitational wave (GW) observatories is the light's quantum noise. While the sensitivity of the first observatory generation was limited by the shot noise at Fourier frequencies above several hundred hertz, the future observatory generations are expected to be limited by quantum noise also in their low-frequency detection band. Squeezed states of the light field allow for improving the sensitivity at all quantum-noise-limited frequencies. Recently, a squeezing-reduced shot noise of the GW observatory GEO 600 was demonstrated. Based on this success, the Einstein Telescope design study proposes squeezed-light injection to reduce shot noise as well as quantum radiation pressure noise by a factor of ten in power, i.e. by 10 dB. This contribution summarizes the current state of the art in the field of squeezed-light generation for gravitational wave astronomy and the prospects for the intermediate future.

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 Dates: 2015
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: DOI: 10.1142/9789814623995_0351
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Title: The Thirteenth Marcel Grossmann Meeting
Place of Event: Stockholm University, Sweden
Start-/End Date: 2012-07-01 - 2012-07-07

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Title: Proceedings of the MG13 Meeting on General Relativity
Source Genre: Proceedings
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Publ. Info: World Scientific
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 2040 - 2042 Identifier: -