TY - JOUR
T1 - Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector
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 - Andric, 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 - Bischi, M
AU - Virgo Collaboration
AU - Koekoek, Gideon
AU - van den Brand, Johannes
AU - Hild, Stefan
AU - Steinlechner, Sebastian
AU - Steinlechner, Jessica
AU - Singha, Ayatri
AU - Utina, Andrei
AU - Spagnuolo, Viola
AU - Danilishin, Stefan
AU - Hennig, Margot
AU - Hennig, Jan-Simon
AU - Iandolo, Guido Alex
AU - Kranzhoff, Luise
AU - van Ranst, Zeb
AU - Diksha, Diksha
PY - 2023/7/25
Y1 - 2023/7/25
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.
U2 - 10.1103/PhysRevLett.131.041403
DO - 10.1103/PhysRevLett.131.041403
M3 - Article
SN - 1079-7114
VL - 131
SP - 041403
JO - Physical review letters
JF - Physical review letters
IS - 4
M1 - 041403
ER -