G-Pisa is an experiment investigating the possibility of operating a high-sensitivity laser gyroscope with area less than 1 m(2) for improving the performances of the mirrors suspensions of the gravitational wave antenna Virgo. The experimental set-up consists of a He-Ne ring laser with a 4-mirror square cavity. The laser is pumped by an RF discharge where the RF oscillator includes the laser plasma 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 in either single mode or multimode. The effect of hydrogen contamination on the laser was also checked. A low-frequency sensitivity, below 1 Hz, in the range of 10(-8)(rad/s)/root Hz has been measured.

Rotational Sensitivity of the G-Pisa Gyrolaser

BELFI, JACOPO;BEVERINI, NICOLO';CARELLI, GIORGIO;MACCIONI, ENRICO;
2010-01-01

Abstract

G-Pisa is an experiment investigating the possibility of operating a high-sensitivity laser gyroscope with area less than 1 m(2) for improving the performances of the mirrors suspensions of the gravitational wave antenna Virgo. The experimental set-up consists of a He-Ne ring laser with a 4-mirror square cavity. The laser is pumped by an RF discharge where the RF oscillator includes the laser plasma 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 in either single mode or multimode. The effect of hydrogen contamination on the laser was also checked. A low-frequency sensitivity, below 1 Hz, in the range of 10(-8)(rad/s)/root Hz has been measured.
2010
Belfi, Jacopo; Beverini, Nicolo'; Bosi, F; Carelli, Giorgio; Di Virgilio, A; Maccioni, Enrico; Pizzocaro, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/137670
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