Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
28 Jul 2023
28 Jul 2023
Historique:
received:
12
02
2023
revised:
24
04
2023
accepted:
09
05
2023
medline:
11
8
2023
pubmed:
11
8
2023
entrez:
11
8
2023
Statut:
ppublish
Résumé
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.
Identifiants
pubmed: 37566847
doi: 10.1103/PhysRevLett.131.041403
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM