Design of a speed meter interferometer proof-of-principle experiment

C. Graf; B.W. Barr; A.S. Bell; F. Campbell; A.V. Cumming; S.L. Danilishin; N.A. Gordon; G.D. Hammond; J. Hennig; E.A. Houston; S.H. Huttner; R.A. Jones; S.S. Leavey; H. Luck; J. Macarthur; M. Marwick; S. Rigby; R. Schilling; B. Sorazu; A. Spencer; S. Steinlechner; K.A. Strain; S. Hild

doi:10.1088/0264-9381/31/21/215009

Design of a speed meter interferometer proof-of-principle experiment

C. Graf^*, B.W. Barr, A.S. Bell, F. Campbell, A.V. Cumming, S.L. Danilishin, N.A. Gordon, G.D. Hammond, J. Hennig, E.A. Houston, S.H. Huttner, R.A. Jones, S.S. Leavey, H. Luck, J. Macarthur, M. Marwick, S. Rigby, R. Schilling, B. Sorazu, A. SpencerS. Steinlechner, K.A. Strain, S. Hild

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The second generation of large scale interferometric gravitational wave (GW) detectors will be limited by quantum noise over a wide frequency range in their detection band. Further sensitivity improvements for future upgrades or new detectors beyond the second generation motivate the development of measurement schemes to mitigate the impact of quantum noise in these instruments. Two strands of development are being pursued to reach this goal, focusing both on modifications of the well-established Michelson detector configuration and development of different detector topologies. In this paper, we present the design of the world''s first Sagnac speed meter (SSM) interferometer, which is currently being constructed at the University of Glasgow. With this proof-of-principle experiment we aim to demonstrate the theoretically predicted lower quantum noise in a Sagnac interferometer compared to an equivalent Michelson interferometer, to qualify SSM for further research towards an implementation in a future generation large scale GW detector, such as the planned Einstein telescope observatory.

Original language	English
Article number	215009
Number of pages	16
Journal	Classical and Quantum Gravity
Volume	31
Issue number	21
DOIs	https://doi.org/10.1088/0264-9381/31/21/215009
Publication status	Published - 7 Nov 2014
Externally published	Yes

Keywords

Sagnac speed meter
quantum noise
laser interferometer
conceptual design
gravitational wave detector
QND
quantum non-demolition
SAGNAC INTERFEROMETER
NOISE

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Cite this

Graf, C., Barr, B. W., Bell, A. S., Campbell, F., Cumming, A. V., Danilishin, S. L., Gordon, N. A., Hammond, G. D., Hennig, J., Houston, E. A., Huttner, S. H., Jones, R. A., Leavey, S. S., Luck, H., Macarthur, J., Marwick, M., Rigby, S., Schilling, R., Sorazu, B., ... Hild, S. (2014). Design of a speed meter interferometer proof-of-principle experiment. Classical and Quantum Gravity, 31(21), Article 215009. https://doi.org/10.1088/0264-9381/31/21/215009

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abstract = "The second generation of large scale interferometric gravitational wave (GW) detectors will be limited by quantum noise over a wide frequency range in their detection band. Further sensitivity improvements for future upgrades or new detectors beyond the second generation motivate the development of measurement schemes to mitigate the impact of quantum noise in these instruments. Two strands of development are being pursued to reach this goal, focusing both on modifications of the well-established Michelson detector configuration and development of different detector topologies. In this paper, we present the design of the world''s first Sagnac speed meter (SSM) interferometer, which is currently being constructed at the University of Glasgow. With this proof-of-principle experiment we aim to demonstrate the theoretically predicted lower quantum noise in a Sagnac interferometer compared to an equivalent Michelson interferometer, to qualify SSM for further research towards an implementation in a future generation large scale GW detector, such as the planned Einstein telescope observatory.",

keywords = "Sagnac speed meter, quantum noise, laser interferometer, conceptual design, gravitational wave detector, QND, quantum non-demolition, SAGNAC INTERFEROMETER, NOISE",

author = "C. Graf and B.W. Barr and A.S. Bell and F. Campbell and A.V. Cumming and S.L. Danilishin and N.A. Gordon and G.D. Hammond and J. Hennig and E.A. Houston and S.H. Huttner and R.A. Jones and S.S. Leavey and H. Luck and J. Macarthur and M. Marwick and S. Rigby and R. Schilling and B. Sorazu and A. Spencer and S. Steinlechner and K.A. Strain and S. Hild",

year = "2014",

month = nov,

day = "7",

doi = "10.1088/0264-9381/31/21/215009",

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Graf, C, Barr, BW, Bell, AS, Campbell, F, Cumming, AV, Danilishin, SL, Gordon, NA, Hammond, GD, Hennig, J, Houston, EA, Huttner, SH, Jones, RA, Leavey, SS, Luck, H, Macarthur, J, Marwick, M, Rigby, S, Schilling, R, Sorazu, B, Spencer, A, Steinlechner, S, Strain, KA & Hild, S 2014, 'Design of a speed meter interferometer proof-of-principle experiment', Classical and Quantum Gravity, vol. 31, no. 21, 215009. https://doi.org/10.1088/0264-9381/31/21/215009

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AU - Graf, C.

AU - Barr, B.W.

AU - Bell, A.S.

AU - Campbell, F.

AU - Cumming, A.V.

AU - Danilishin, S.L.

AU - Gordon, N.A.

AU - Hammond, G.D.

AU - Hennig, J.

AU - Houston, E.A.

AU - Huttner, S.H.

AU - Jones, R.A.

AU - Leavey, S.S.

AU - Luck, H.

AU - Macarthur, J.

AU - Marwick, M.

AU - Rigby, S.

AU - Schilling, R.

AU - Sorazu, B.

AU - Spencer, A.

AU - Steinlechner, S.

AU - Strain, K.A.

AU - Hild, S.

PY - 2014/11/7

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N2 - The second generation of large scale interferometric gravitational wave (GW) detectors will be limited by quantum noise over a wide frequency range in their detection band. Further sensitivity improvements for future upgrades or new detectors beyond the second generation motivate the development of measurement schemes to mitigate the impact of quantum noise in these instruments. Two strands of development are being pursued to reach this goal, focusing both on modifications of the well-established Michelson detector configuration and development of different detector topologies. In this paper, we present the design of the world''s first Sagnac speed meter (SSM) interferometer, which is currently being constructed at the University of Glasgow. With this proof-of-principle experiment we aim to demonstrate the theoretically predicted lower quantum noise in a Sagnac interferometer compared to an equivalent Michelson interferometer, to qualify SSM for further research towards an implementation in a future generation large scale GW detector, such as the planned Einstein telescope observatory.

AB - The second generation of large scale interferometric gravitational wave (GW) detectors will be limited by quantum noise over a wide frequency range in their detection band. Further sensitivity improvements for future upgrades or new detectors beyond the second generation motivate the development of measurement schemes to mitigate the impact of quantum noise in these instruments. Two strands of development are being pursued to reach this goal, focusing both on modifications of the well-established Michelson detector configuration and development of different detector topologies. In this paper, we present the design of the world''s first Sagnac speed meter (SSM) interferometer, which is currently being constructed at the University of Glasgow. With this proof-of-principle experiment we aim to demonstrate the theoretically predicted lower quantum noise in a Sagnac interferometer compared to an equivalent Michelson interferometer, to qualify SSM for further research towards an implementation in a future generation large scale GW detector, such as the planned Einstein telescope observatory.

KW - Sagnac speed meter

KW - quantum noise

KW - laser interferometer

KW - conceptual design

KW - gravitational wave detector

KW - QND

KW - quantum non-demolition

KW - SAGNAC INTERFEROMETER

KW - NOISE

U2 - 10.1088/0264-9381/31/21/215009

DO - 10.1088/0264-9381/31/21/215009

M3 - Article

SN - 0264-9381

VL - 31

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

IS - 21

M1 - 215009

ER -