TY - JOUR
T1 - Local-oscillator noise coupling in balanced homodyne readout for advanced gravitational wave detectors
AU - Steinlechner, Sebastian
AU - Barr, Bryan W.
AU - Bell, Angus S.
AU - Danilishin, Stefan L.
AU - Gläfke, Andreas
AU - Gräf, Christian
AU - Hennig, Jan Simon
AU - Houston, E. Alasdair
AU - Huttner, Sabina H.
AU - Leavey, Sean S.
AU - Pascucci, Daniela
AU - Sorazu, Borja
AU - Spencer, Andrew
AU - Strain, Kenneth A.
AU - Wright, Jennifer
AU - Hild, Stefan
N1 - Publisher Copyright:
© 2015 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2015/10/20
Y1 - 2015/10/20
N2 - The second generation of interferometric gravitational wave detectors are quickly approaching their design sensitivity. For the first time these detectors will become limited by quantum backaction noise. Several backaction evasion techniques have been proposed to further increase the detector sensitivity. Since most proposals rely on a flexible readout of the full amplitude- and phase-quadrature space of the output light field, balanced homodyne detection is generally expected to replace the currently used DC readout. Up to now, little investigation has been undertaken into how balanced homodyne detection can be successfully transferred from its ubiquitous application in tabletop quantum optics experiments to large-scale interferometers with suspended optics. Here we derive implementation requirements with respect to local-oscillator noise couplings and highlight potential issues with the example of the Glasgow Sagnac Speed Meter experiment, as well as for a future upgrade to the Advanced LIGO detectors.
AB - The second generation of interferometric gravitational wave detectors are quickly approaching their design sensitivity. For the first time these detectors will become limited by quantum backaction noise. Several backaction evasion techniques have been proposed to further increase the detector sensitivity. Since most proposals rely on a flexible readout of the full amplitude- and phase-quadrature space of the output light field, balanced homodyne detection is generally expected to replace the currently used DC readout. Up to now, little investigation has been undertaken into how balanced homodyne detection can be successfully transferred from its ubiquitous application in tabletop quantum optics experiments to large-scale interferometers with suspended optics. Here we derive implementation requirements with respect to local-oscillator noise couplings and highlight potential issues with the example of the Glasgow Sagnac Speed Meter experiment, as well as for a future upgrade to the Advanced LIGO detectors.
UR - http://www.scopus.com/inward/record.url?scp=84945257725&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.92.072009
DO - 10.1103/PhysRevD.92.072009
M3 - Article
SN - 1550-7998
VL - 92
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 072009
ER -