Title :
A heterodyne frequency-stabilization method for large ring laser gyroscopes with Sub-nW output power
Author :
Stefani, Francis ; Belfi, J. ; Maccioni, E.
Author_Institution :
Lab. de Phys. des Lasers (LPL), Paris 13 Univ., Villetaneuse, France
Abstract :
We present the characteristics and the performances of a heterodyne detection scheme allowing a robust frequency lock of the G-Pisa ring laser [1,2] to a He-Ne Doppler shift stabilized reference laser. The system demonstrated a continuous unattended control of the laser frequency for several days of operation of the gyroscope with a single mode output power of about 500 pW.
Keywords :
Doppler shift; gas lasers; gyroscopes; heterodyne detection; laser frequency stability; ring lasers; sensors; G-Pisa ring laser gyroscope; He-Ne Doppler shift stabilized reference laser; heterodyne detection scheme; heterodyne frequency-stabilization method; laser frequency control; robust frequency lock; subnW output power; Gyroscopes; Laser stability; Laser theory; Measurement by laser beam; Optical filters; Power lasers; Ring lasers;
Conference_Titel :
European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC), 2013 Joint
Conference_Location :
Prague
DOI :
10.1109/EFTF-IFC.2013.6702297
