Sensitivity of intracavity filtering schemes for detecting gravitational waves

Mengyao Wang; Haixing Miao; Andreas Freise; Yanbei Chen

doi:10.1103/PhysRevD.89.062009

Sensitivity of intracavity filtering schemes for detecting gravitational waves

Mengyao Wang^*, Haixing Miao, Andreas Freise, Yanbei Chen

^*Corresponding author for this work

Physics and Astronomy

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Abstract

We consider enhancing the sensitivity of future gravitational-wave detectors by adding optical filters inside the signal-recycling cavity - an intracavity filtering scheme, which coherently feeds the sideband signal back to the interferometer with a proper frequency-dependent phase. We study three cases of such a scheme with different motivations: (i) the case of backaction noise evasion, trying to cancel radiation-pressure noise with only one filter cavity for a signal-recycled interferometer; (ii) the speed-meter case, similar to the speed-meter scheme proposed by Purdue and Chen [Phys. Rev. D 66, 122004 (2002)] but without the resonant-sideband-extraction mirror, and also relieves the optical requirement on the sloshing mirror; (iii) the broadband detection case with squeezed-light input, numerically optimized for a broadband sensitivity.

Original language	English
Article number	062009
Journal	Physical Review D
Volume	89
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevD.89.062009
Publication status	Published - 31 Mar 2014

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.89.062009

Wang_et_al_Sensitivity_Intracavity_Filtering_Physical_Review_D_2014
© 2014 American Physical Society. Published in Physical Review D and available online at: http://dx.doi.org/10.1103/PhysRevD.89.062009. Eligibility for repository checked July 2015
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Birmingham Astrophysics : Consolidated Grant 2013-2016
Vecchio, A. (Principal Investigator), Ponman, T. (Co-Investigator), Freise, A. (Co-Investigator), Smith, G. (Co-Investigator), Speake, C. (Co-Investigator), Mandel, I. (Co-Investigator), Cruise, M. (Co-Investigator), Raychaudhury, S. (Co-Investigator) & Stevens, I. (Co-Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/13 → 30/09/16
Project: Research Councils
Einstein Telescope R&D
Freise, A. (Principal Investigator), Mandel, I. (Co-Investigator) & Vecchio, A. (Co-Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/13 → 31/03/16
Project: Research Councils

Cite this

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Sensitivity of intracavity filtering schemes for detecting gravitational waves

Abstract

ASJC Scopus subject areas

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Birmingham Astrophysics : Consolidated Grant 2013-2016

Einstein Telescope R&D

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