Rotational sensitivity of the "G-Pisa" gyrolaser

Belfi, Jacopo and Beverini, Nicolò and Bosi, Filippo and Carelli, Giorgio and Virgilio, Angela Di and Maccioni, Enrico and Pizzocaro, Marco (2010) Rotational sensitivity of the "G-Pisa" gyrolaser. arXiv .

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Abstract

G-Pisa is an experiment investigating the possibility to operate a high sensitivity laser gyroscope with area less than $1 \rm m^2$ for improving the performances of the mirrors suspensions of the gravitational wave antenna Virgo. The experimental set-up consists in a He-Ne ring laser with a 4 mirrors square cavity. The laser is pumped by an RF discharge where the RF oscillator includes the laser plasma in order to reach a better stability. The contrast of the Sagnac fringes is typically above 50% and a stable regime has been reached with the laser operating both single mode or multimode. The effect of hydrogen contamination on the laser was also checked. A low-frequency sensitivity, below $1 \rm Hz$, in the range of $10^{-8} \rm {(rad / s)/ \sqrt{Hz}}$ has been measured.

Item Type: Article Imported from arXiv Area02 - Scienze fisiche > FIS/01 - Fisica sperimentale Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA dott.ssa Sandra Faita 29 Jan 2014 23:43 29 Jan 2014 23:43 http://eprints.adm.unipi.it/id/eprint/1627

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