TY - JOUR
T1 - Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector
AU - The Virgo Collaboration
AU - Acernese, F.
AU - Agathos, M.
AU - Ain, A.
AU - Albanesi, S.
AU - Alléné, C.
AU - Allocca, A.
AU - Amato, A.
AU - Amra, C.
AU - Andia, M.
AU - Andrade, T.
AU - Andres, N.
AU - Andrés-Carcasona, M.
AU - Andrić, T.
AU - Ansoldi, S.
AU - Antier, S.
AU - Apostolatos, T.
AU - Appavuravther, E. Z.
AU - Arène, M.
AU - Arnaud, N.
AU - Assiduo, M.
AU - Melo, S. Assis De Souza
AU - Astone, P.
AU - Aubin, F.
AU - Babak, S.
AU - Badaracco, F.
AU - Bagnasco, S.
AU - Baird, J.
AU - Baka, T.
AU - Ballardin, G.
AU - Baltus, G.
AU - Banerjee, B.
AU - Barneo, P.
AU - Barone, F.
AU - Barsuglia, M.
AU - Barta, D.
AU - Basti, A.
AU - Bawaj, M.
AU - Bazzan, M.
AU - Beirnaert, F.
AU - Bejger, M.
AU - Benedetto, V.
AU - Berbel, M.
AU - Bernuzzi, S.
AU - Bersanetti, D.
AU - Bertolini, A.
AU - Bhardwaj, U.
AU - Bianchi, A.
AU - Bilicki, M.
AU - Bini, S.
AU - Guetta, D.
N1 - Publisher Copyright:
© 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
PY - 2023/7/28
Y1 - 2023/7/28
N2 - In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming observation run. The frequency-dependent squeezed field is generated by a phase rotation of a frequency-independent squeezed state through a 285 m long, high-finesse, near-detuned optical resonator. With about 8.5 dB of generated squeezing, up to 5.6 dB of quantum noise suppression has been measured at high frequency while close to the filter cavity resonance frequency, the intracavity losses limit this value to about 2 dB. Frequency-dependent squeezing is produced with a rotation frequency stability of about 6 Hz rms, which is maintained over the long term. The achieved results fulfill the frequency dependent squeezed vacuum source requirements for Advanced Virgo Plus. With the current squeezing source, considering also the estimated squeezing degradation induced by the interferometer, we expect a reduction of the quantum shot noise and radiation pressure noise of up to 4.5 dB and 2 dB, respectively.
AB - In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming observation run. The frequency-dependent squeezed field is generated by a phase rotation of a frequency-independent squeezed state through a 285 m long, high-finesse, near-detuned optical resonator. With about 8.5 dB of generated squeezing, up to 5.6 dB of quantum noise suppression has been measured at high frequency while close to the filter cavity resonance frequency, the intracavity losses limit this value to about 2 dB. Frequency-dependent squeezing is produced with a rotation frequency stability of about 6 Hz rms, which is maintained over the long term. The achieved results fulfill the frequency dependent squeezed vacuum source requirements for Advanced Virgo Plus. With the current squeezing source, considering also the estimated squeezing degradation induced by the interferometer, we expect a reduction of the quantum shot noise and radiation pressure noise of up to 4.5 dB and 2 dB, respectively.
UR - https://www.scopus.com/pages/publications/85167740170
U2 - 10.1103/PhysRevLett.131.041403
DO - 10.1103/PhysRevLett.131.041403
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C2 - 37566847
AN - SCOPUS:85167740170
SN - 0031-9007
VL - 131
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
M1 - 041403
ER -