DC-readout of a signal-recycled gravitational wave detector

S. Hild; H. Grote; J. Degallaix; S. Chelkowski; K. Danzmann; A. Freise; M. Hewitson; J. Hough; H. Lück; M. Prijatelj; K.A. Strain; J.R. Smith; B. Willke

doi:10.1088/0264-9381/26/5/055012

DC-readout of a signal-recycled gravitational wave detector

S. Hild, H. Grote, J. Degallaix, S. Chelkowski, K. Danzmann, A. Freise, M. Hewitson, J. Hough, H. Lück, M. Prijatelj, K.A. Strain, J.R. Smith, B. Willke

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

Abstract

All first-generation large-scale gravitational wave detectors are operated at the dark fringe and use a heterodyne readout employing radio frequency (RF) modulation-demodulation techniques. However, the experience in the currently running interferometers reveals several problems connected with a heterodyne readout, of which phase noise of the RF modulation is the most serious one. A homodyne detection scheme (DC-readout), using the highly stabilized and filtered carrier light as a local oscillator for the readout, is considered to be a favourable alternative. Recently a DC-readout scheme has been implemented on the GEO 600 detector. We describe the results of first measurements and give a comparison of the performance achieved with homodyne and heterodyne readout. The implications of the combined use of DC-readout and signal recycling are considered. © 2009 IOP Publishing Ltd.

Original language	English
Journal	Classical and Quantum Gravity
Volume	26
Issue number	5
DOIs	https://doi.org/10.1088/0264-9381/26/5/055012
Publication status	Published - 2009
Externally published	Yes

Access to Document

10.1088/0264-9381/26/5/055012

Persistent URL (handle)

Copy link address

Cite this

@article{d74a551942664b11a11850bbc535ef9b,

title = "DC-readout of a signal-recycled gravitational wave detector",

abstract = "All first-generation large-scale gravitational wave detectors are operated at the dark fringe and use a heterodyne readout employing radio frequency (RF) modulation-demodulation techniques. However, the experience in the currently running interferometers reveals several problems connected with a heterodyne readout, of which phase noise of the RF modulation is the most serious one. A homodyne detection scheme (DC-readout), using the highly stabilized and filtered carrier light as a local oscillator for the readout, is considered to be a favourable alternative. Recently a DC-readout scheme has been implemented on the GEO 600 detector. We describe the results of first measurements and give a comparison of the performance achieved with homodyne and heterodyne readout. The implications of the combined use of DC-readout and signal recycling are considered. {\textcopyright} 2009 IOP Publishing Ltd.",

author = "S. Hild and H. Grote and J. Degallaix and S. Chelkowski and K. Danzmann and A. Freise and M. Hewitson and J. Hough and H. L{\"u}ck and M. Prijatelj and K.A. Strain and J.R. Smith and B. Willke",

year = "2009",

doi = "10.1088/0264-9381/26/5/055012",

language = "English",

volume = "26",

journal = "Classical and Quantum Gravity",

issn = "0264-9381",

publisher = "IOP Publishing Ltd.",

number = "5",

}

TY - JOUR

T1 - DC-readout of a signal-recycled gravitational wave detector

AU - Hild, S.

AU - Grote, H.

AU - Degallaix, J.

AU - Chelkowski, S.

AU - Danzmann, K.

AU - Freise, A.

AU - Hewitson, M.

AU - Hough, J.

AU - Lück, H.

AU - Prijatelj, M.

AU - Strain, K.A.

AU - Smith, J.R.

AU - Willke, B.

PY - 2009

Y1 - 2009

N2 - All first-generation large-scale gravitational wave detectors are operated at the dark fringe and use a heterodyne readout employing radio frequency (RF) modulation-demodulation techniques. However, the experience in the currently running interferometers reveals several problems connected with a heterodyne readout, of which phase noise of the RF modulation is the most serious one. A homodyne detection scheme (DC-readout), using the highly stabilized and filtered carrier light as a local oscillator for the readout, is considered to be a favourable alternative. Recently a DC-readout scheme has been implemented on the GEO 600 detector. We describe the results of first measurements and give a comparison of the performance achieved with homodyne and heterodyne readout. The implications of the combined use of DC-readout and signal recycling are considered. © 2009 IOP Publishing Ltd.

AB - All first-generation large-scale gravitational wave detectors are operated at the dark fringe and use a heterodyne readout employing radio frequency (RF) modulation-demodulation techniques. However, the experience in the currently running interferometers reveals several problems connected with a heterodyne readout, of which phase noise of the RF modulation is the most serious one. A homodyne detection scheme (DC-readout), using the highly stabilized and filtered carrier light as a local oscillator for the readout, is considered to be a favourable alternative. Recently a DC-readout scheme has been implemented on the GEO 600 detector. We describe the results of first measurements and give a comparison of the performance achieved with homodyne and heterodyne readout. The implications of the combined use of DC-readout and signal recycling are considered. © 2009 IOP Publishing Ltd.

U2 - 10.1088/0264-9381/26/5/055012

DO - 10.1088/0264-9381/26/5/055012

M3 - Article

SN - 0264-9381

VL - 26

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

IS - 5

ER -

DC-readout of a signal-recycled gravitational wave detector

Abstract

Access to Document

Persistent URL (handle)

Fingerprint

Cite this