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  Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency

Vahlbruch, H., Mehmet, M., Danzmann, K., & Schnabel, R. (2016). Detection of 15 dB Squeezed States of Light and their Application for the Absolute Calibration of Photoelectric Quantum Efficiency. Physical Review Letters, 117: 110801. doi:10.1103/PhysRevLett.117.110801.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-87B5-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-FCD5-4
Genre: Journal Article

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PRL117_110801.pdf (Publisher version), 289KB
 
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 Creators:
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: Squeezed states of light belong to the most prominent nonclassical resources. They have compelling applications in metrology, which has been demonstrated by their routine exploitation for improving the sensitivity of a gravitational-wave detector since 2010. Here, we report on the direct measurement of 15 dB squeezed vacuum states of light and their application to calibrate the quantum efficiency of photoelectric detection. The object of calibration is a customized InGaAs positive intrinsic negative (p-i-n) photodiode optimized for high external quantum efficiency. The calibration yields a value of 99.5% with a 0.5% (k=2) uncertainty for a photon flux of the order 1017  s−1 at a wavelength of 1064 nm. The calibration neither requires any standard nor knowledge of the incident light power and thus represents a valuable application of squeezed states of light in quantum metrology.

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 Dates: 2016
 Publication Status: Published in print
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 Identifiers: DOI: 10.1103/PhysRevLett.117.110801
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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: - Volume / Issue: 117 Sequence Number: 110801 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: /journals/resource/954925433406_1