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Last name: CLEVA
First name: Frédéric
We report on a new 100-W solid state 1064-nm amplifier integrated in Advanced VIRGO pre-stabilized laser system. Short and long term stability parameters comply with gravitational wave detector requirements. Impact of pump transport is discussed.
Summary form only given. VIRGO is a 3-km-arm laser interferometer for gravitational wave detection in the 20 Hz-5 kHz frequency band. Its second-generation version, Advanced VIRGO, aims at reducing the detector noise by a factor of ten compared to the first generation, with the progressive deployment of new technologies and equipment [1]. The...
Summary form only given. VIRGO is a 3-km-arm laser interferometer for gravitational wave detection in the 20 Hz-5 kHz frequency band. Its second-generation version, Advanced VIRGO, aims at reducing the detector noise by a factor of ten compared to the first generation, with the progressive deployment of new technologies and equipment [1]. The...
International audience
Advanced Virgo est la version de seconde génération du détecteur d'ondes gravitationnelles Virgo. Sa sensibilité est accrue d'un facteur 10, grâce notamment à l'augmentation de la puissance optique. Un amplificateur 95 W a été étudié et caractérisé. Ses performances mesurées son compatibles avec les exigences du nouveau système laser pré-stabilisé.
Stray light is an issue in any optical interference measurement, particularly in interferometric gravitational wave detectors, where stringent limits are placed on the noise floor: the control and mitigation of stray light are critical. After general considerations about stray light, this presentation addresses the development underway of an...
International audience
International audience
Second generation of laser interferometer gravitational wave detectors can now detect the fusion of compact stellar object pair weekly. To increase the sensitivity, an important change of design between first and second generation gravitational wave detectors is the use of homodyne detection instead of heterodyne. This modification has strongly...
International audience