Journal Article10.1063/1.1147536
Digitally controlled interferometer prototype for gravitational wave detection
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TL;DR: In this article, the authors describe the architecture of the 3 m suspended Michelson interferometer prototype for gravitational wave detection which is operational in Napoli and describe the characteristics of the system, including the digital implementation of the control system, monitoring system, data acquisition system, and archiving system.
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Abstract: In this article, we describe the architecture of the 3 m suspended Michelson interferometer prototype for gravitational wave detection which is operational in Napoli. The characteristic which makes this interferometer different from the existing ones is the digital implementation of the control system, the monitoring system, the data acquisition system, and the archiving system. This architecture makes this interferometer a good test bench for the study, the development, and the test of general techniques for the automatic control of interferometers for gravitational wave detection. In particular, it is now being used for the development and the test of some subsystems of the very long baseline interferometric VIRGO antenna for gravitational wave detection. [The Virgo Project, Final Design of the Italian–French large base interferometric antenna Virgo for gravitational wave detection of which the authors are proponents and in whose construction the Authors are collaborating (INFN, Italy, and CNRS, France,...
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Citations
Automation and Control of Fabry–Pérot Interferometers
TL;DR: Embedded model control technology, which was developed by one of the authors, allows to systematically proceed from fine dynamics and requirements to the EM, which is the core of control design and algorithms.
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Automation and control of Fabry-Perot interferometers
Enrico Canuto,F. Musso,Luca Massotti +2 more
- 19 Sep 2005
TL;DR: Embedded model control (EMC) technology developed by one of the authors has been employed and experimental results are presented.
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Present status of resonant-mass detectors
TL;DR: In this paper, the present status and future prospects of resonant mass gravitational wave detectors are reviewed and summarizes recent results on burst detection, continuous wave detection and stochastic background searches.
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An interferometric device to measure the mechanical transfer function of the VIRGO mirrors suspensions
TL;DR: In this paper, a suspended interferometric device devoted to the measurement of the mechanical transfer function (TF) of the multipendular seismic isolators of the VIRGO antenna is presented.
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The archiving system of the Virgo antenna for gravitational wave detection
TL;DR: The hardware and software architecture of the prototypes of the archiving system of the very long base line interferometric Virgo antenna for gravitational wave detection, which has been tested in the data acquisition of the 3 m pendularly suspended and evacuated Michelson interferometer prototype, is described.
References
Fringe-counting technique used to lock a suspended interferometer.
Fabrizio Barone,Enrico Calloni,Rosario De Rosa,Luciano Di Fiore,Francesco Fusco,Leopoldo Milano,Guido Russo +6 more
TL;DR: A digital fringe-counting technique is implemented to measure in real time the relative mirror displacement of a suspended Michelson interferometer with modulated optical path length for oscillations much larger than the laser wavelength.
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Digital error-signal extraction technique for real-time automatic control of optical interferometers.
TL;DR: An efficient and robust method for the extraction of the longitudinal error signal for the automatic control of optical interferometers, which can also be applied when the uncontrolled optical system spans hundreds of fringes.
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Real-time digital control of optical interferometers by the mechanical-modulation technique
Fabrizio Barone,Rosario De Rosa,Luciano Di Fiore,Francesco Fusco,Aniello Grado,Leopoldo Milano,Guido Russo +6 more
TL;DR: It is shown that, if the mechanical-modulation technique is used for error-signal extraction, digital techniques can be used both for error's extraction and for control-signals generation, and one of the possible applications of this digital control procedure is described, such as the control of a classic Mach-Zehnder interferometer in air.
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A digital approach to automatic control of a long-baseline interferometric antenna for gravitational wave detection
TL;DR: Experimental measurements, obtained using a prototype of the automatic control system, and theoretical analysis of the performances of the digital control loops have demonstrated the feasibility of a digital control system.
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•Book
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Peter R. Saulson
- 01 Oct 1994
TL;DR: The search for gravitational waves the nature of gravitational waves sources of gravitational wave linear systems, signals and noise optical readout noise folded interferometer arms thermal noise seismic noise and vibration isolation design of large interferometers null instruments feedback control systems an interferer as an active null instrument resonant mass gravitational wave detectors detecting gravitational wave signals gravitational wave astronomy prospects