Low-amplitude-noise laser for AURIGA detector optical readout

Year: 2000

Authors: Conti L., De Rosa M., Marin F.

Autors Affiliation: Dipartimento di Fisica, Università di Trento and the Istituto Nazionale di Fisica Nucleare Gruppo collegato Trento, Povo, I-38050, Italy; Dipartimento di Fisica, Università di Firenze and the Istituto Nazionale di Fisica Nucleare Sezione Firenze, European Laboratory for Nonlinear Spectroscopy, Largo E. Fermi 2, Firenze, I-50125, Italy; Dipartimento di Fisica, Università di Padova, Istituto Nazionale di Fisica Nucleare Sezione Padova, Via Marzolo 8, Padova, I-35100, Italy

Abstract: We 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.

Journal/Review: APPLIED OPTICS

Volume: 39 (31)      Pages from: 5732  to: 5738

KeyWords: Acoustic waves; Gravitation; Light polarization; Neodymium lasers; Spurious signal noise, Laser systems, Optical sensors
DOI: 10.1364/AO.39.005732

Citations: 21
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