Laser with an in-loop relative frequency stability of 1.0x10{sup -21} on a 100-ms time scale for gravitational-wave detection

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.79.053824· OSTI ID:21313100

Acernese, F; Barone, F; Romano, R ^[1]; Alshourbagy, M; Barsotti, L; Bigotta, S; Bonelli, L; Corda, C; Di Lieto, A; Ferrante, I; Fidecaro, F; Passaquieti, R; Poggiani, R; Toncelli, A; Tonelli, M ^[2]; Antonucci, F; Astone, P; Chatterji, S; Colombini, M; Corsi, A ^[3]

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1. INFN, Sezione di Napoli, 80126 Napoli (Italy)
2. INFN, Sezione di 56127 Pisa, 56127 Pisa (Italy)
3. INFN, Sezione di Roma, 00185 Roma (Italy)

We report on the stabilization of the laser frequency for the Virgo gravitational-wave detector. We have obtained a frequency noise level, measured in loop, of 1.9x10{sup -7} Hz/{radical}(Hz) at 10 Hz for the 1064 nm laser; this value is limited by shot noise. The Allan standard deviation for relative frequency noise is 1.0x10{sup -21} on a 100-ms time scale. The spectral density of the laser frequency noise is negligible in the channel where gravitational waves ought to appear and meets the specifications for the target spectral resolution of the Virgo interferometer in the 10 Hz-10 kHz detection bandwidth.

• OSTI ID: 21313100
• Journal Information: Physical Review. A, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevA.79.053824; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DETECTION
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
INTERFEROMETERS
INTERFEROMETRY
KHZ RANGE
LASERS
NOISE
RESOLUTION
SPECIFICATIONS
SPECTRAL DENSITY
STABILITY
STABILIZATION
VISIBLE RADIATION