Low-amplitude-noise laser for AURIGA detector optical readout
2000; Optica Publishing Group; Volume: 39; Issue: 31 Linguagem: Inglês
10.1364/ao.39.005732
ISSN0003-6935
AutoresL. Conti, M. De Rosa, F. Marín,
Tópico(s)Geophysics and Sensor Technology
ResumoWe implemented a laser system to be used in an optical transduction chain for the gravitational-wave bar detector AURIGA (Antenna Ultracriogenica Risonante per l'Indagine Gravitazionale Astronomica; Ultracryogenic Resonant Antenna for Astronomical Gravitational Investigation). This system is based on a Nd:YAG laser and includes quantum-limited power stabilization in the acoustic range, deep phase modulation and near-quantum-limited rf detection for locking onto optical cavities, and coupling to a single-mode polarization-maintaining optical fiber without deterioration of performance. Such a system has wide applications in optical metrology.
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