G-Pisa gyrolaser

Author

Belfi, J. ; Beverini, N. ; Bosi, F. ; Carelli, G. ; Virgilio, A. Di ; Graham, R. ; Maccioni, E. ; Pizzocaro, M. ; Porzio, A. ; Schreiber, U. ; Solimeno, S. ; Sorrentino, F. ; Velikoseltsev, A.

Author_Institution

Dipt. di Fis., Univ. di Pisa, Pisa, Italy

fYear

2009

fDate

20-24 April 2009

Firstpage

738

Lastpage

741

Abstract

G-Pisa is an experiment which is investigating the possibility to operate a laser-gyro with area less than 1 m² and high sensitivity in order to improve the performances of the mirrors suspension of the gravitational wave antenna Virgo. The experimental set-up consists of a 4 mirrors square cavity, the mechanical drawing allows us to scale the area from 2 down to 0.81 m². G-Pisa is working since July 2008, in the following the results so far obtained are reported. At low frequency, below 1 Hz, the sensitivity is typically in the range of 10^-8 rad/s/radicHz, it has been checked that G-Pisa is working properly in single mode and multimode good stable operation has been observed up to 4 mode.

Keywords

gyroscopes; navigation; G-Pisa gyrolaser; gravitational wave antenna Virgo; laser gyro; sensitivity; square cavity; Earth; Fiber lasers; Frequency measurement; Geophysical measurements; Laser beams; Laser mode locking; Level measurement; Phase measurement; Ring lasers; Sagnac interferometers;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2009 Joint with the 22nd European Frequency and Time forum. IEEE International

Conference_Location

Besancon

ISSN

1075-6787

Print_ISBN

978-1-4244-3511-1

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2009.5168282

Filename

5168282