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Beating the Standard Sensitivity-Bandwidth Limit of Cavity-Enhanced Interferometers with Internal Squeezed-Light Generation

Korobko, M. and Kleybolte, L. and Ast, S. and Miao, H. and Chen, Y. and Schnabel, R. (2017) Beating the Standard Sensitivity-Bandwidth Limit of Cavity-Enhanced Interferometers with Internal Squeezed-Light Generation. Physical Review Letters, 118 (14). Art. No. 143601. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20170407-092626858

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Abstract

The shot-noise limited peak sensitivity of cavity-enhanced interferometric measurement devices, such as gravitational-wave detectors, can be improved by increasing the cavity finesse, even when comparing fixed intracavity light powers. For a fixed light power inside the detector, this comes at the price of a proportional reduction in the detection bandwidth. High sensitivity over a large span of signal frequencies, however, is essential for astronomical observations. It is possible to overcome this standard sensitivity-bandwidth limit using nonclassical correlations in the light field. Here, we investigate the internal squeezing approach, where the parametric amplification process creates a nonclassical correlation directly inside the interferometer cavity. We theoretically analyze the limits of the approach and measure 36% increase in the sensitivity-bandwidth product compared to the classical case. To our knowledge, this is the first experimental demonstration of an improvement in the sensitivity-bandwidth product using internal squeezing, opening the way for a new class of optomechanical force sensing devices.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevLett.118.143601DOIArticle
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.143601PublisherArticle
http://arxiv.org/abs/1702.01044arXivDiscussion Paper
Additional Information:© 2017 American Physical Society. (Received 12 February 2017; published 7 April 2017) We thank Sacha Kocsis for comments that greatly improved the manuscript, Paolo Piergentili for assistance with the electronics design, the members of MQM discussion group and LSC Quantum Noise working group for many fruitful discussions. The research of M. K. was supported by the Marie Curie Initial Training Network cQOM; the research of M. K., L. K., and R. S. is supported by the European Research Council (ERC) Project “MassQ” (Grant No. 339897); the research of S. A. was supported by the IMPRS on Gravitational-Wave Astronomy; the research of H. M. is supported by UK STFC Ernest Rutherford Fellowship; the research of R. S. is supported by Deutsche Forschungsgemeinschaft (Grant No. SCHN 757-6).
Group:TAPIR
Funders:
Funding AgencyGrant Number
Marie Curie FellowshipUNSPECIFIED
European Research Council (ERC)339897
International Max Planck Research School on Gravitational Wave AstronomyUNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)SCHN 757-6
Record Number:CaltechAUTHORS:20170407-092626858
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170407-092626858
Official Citation:Beating the Standard Sensitivity-Bandwidth Limit of Cavity-Enhanced Interferometers with Internal Squeezed-Light Generation M. Korobko, L. Kleybolte, S. Ast, H. Miao, Y. Chen, and R. Schnabel Phys. Rev. Lett. 118, 143601
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75830
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:07 Apr 2017 16:57
Last Modified:07 Apr 2017 16:57

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