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arXiv · 1001.0476

Rotational sensitivity of the "G-Pisa" gyrolaser

Jacopo Belfi·Nicolò Beverini·Filippo Bosi·Giorgio Carelli·Angela Di Virgilio·Enrico Maccioni·Marco Pizzocaro
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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.

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Jacopo Belfi, Nicolò Beverini, Filippo Bosi, Giorgio Carelli, Angela Di Virgilio, Enrico Maccioni, Marco Pizzocaro. 2010-01-04. Rotational sensitivity of the "G-Pisa" gyrolaser. https://arxiv.org/abs/1001.0476

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