Performances of G-Pisa: a middle size gyrolaser

Angela Di Virgilio (1) , Maria Allegrini (2) , Jacopo Belfi (2) , Nicolò Beverini (2) , Filippo Bosi (1) , Giorgio Carelli (2) , Enrico Maccioni (2) , Marco Pizzocaro (2) , Alberto Porzio (3) , Ulrich Schreiber (4) , Salvatore Solimeno (3) , Fiodor Sorrentino (5)

1 INFN Sezione di Pisa
2 Università di Pisa, and CNISM unità di Pisa
3 Università di Napoli, and CNISM unità di Napoli
4 Forschungseinrichtung Satellitengeodaesie
5 INFN Sezione di Firenze

G-Pisa is an experiment dealing with a high sensitivity laser gyroscope with area of the order of 1 m 2. It aims at improving the performances of the mirrors suspensions of the future generations gravitational wave antenna Virgo. The experimental set-up consists in a He-Ne ring laser with a 4 mirrors square cavity. The device is operational on a stable regime, with the laser operating both single mode or multi mode. The low-frequency sensitivity, 0.001−1 Hz, is limited by the environmental noise, but it has been checked that the requirements for the Inverted Pendulum tilts control given for AdVirgo are fulfilled, (10 −8 rad/ √ Hz at 30mHz).

Mots clés: 04.80.Nn; 95.55.Yn; 42.55.F; 06.30.Gv; 42.79.Qx

Angela Di Virgilio, Maria Allegrini, Jacopo Belfi, Nicolò Beverini, Filippo Bosi, et al.. Performances of G-Pisa: a middle size gyrolaser. Classical and Quantum Gravity, 2010, 27 (8), pp.84033. ⟨10.1088/0264-9381/27/8/084033⟩. ⟨hal-00587624⟩