3 results on '"Barsuglia, Matteo"'
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2. In-vacuum optical isolation changes by heating in a Faraday isolator.
- Author
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Acernese F, Alshourbagy M, Amico P, Antonucci F, Aoudia S, Astone P, Avino S, Ballardin G, Baggio L, Barone F, Barsotti L, Barsuglia M, Bauer TS, Bigotta S, Birindelli S, Bizouard MA, Boccara AC, Bondu F, Bosi L, Braccini S, Bradaschia C, Brillet A, Brisson V, Buskulic D, Cagnoli G, Calloni E, Campagna E, Carbognani F, Carbone L, Cavalier F, Cavalieri R, Cella G, Cesarini E, Chassande-Mottin E, Chatterji S, Cleva F, Coccia E, Corda C, Corsi A, Cottone F, Coulon JP, Cuoco E, D'Antonio S, Dari A, Dattilo V, Davier M, De Rosa R, Del Prete M, Di Fiore L, Di Lieto A, Di Paolo Emilio M, Di Virgilio A, Evans M, Fafone V, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Fournier JD, Frasca S, Frasconi F, Gammaitoni L, Garufi F, Genin E, Gennai A, Giazotto A, Giordano L, Granata V, Greverie C, Grosjean D, Guidi G, Hamdani S, Hebri S, Heitmann H, Hello P, Huet D, La Penna P, Laval M, Leroy N, Letendre N, Lopez B, Lorenzini M, Loriette V, Losurdo G, Mackowski JM, Majorana E, Man N, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Menzinger F, Milano L, Minenkov Y, Moins C, Morgado N, Mosca S, Mours B, Neri I, Nocera F, Pagliaroli G, Palomba C, Paoletti F, Pardi S, Pasqualetti A, Passaquieti R, Passuello D, Persichetti G, Piergiovanni F, Pinard L, Poggiani R, Punturo M, Puppo P, Rabaste O, Rapagnani P, Regimbau T, Remillieux A, Ricci F, Ricciardi I, Rocchi A, Rolland L, Romano R, Ruggi P, Russo G, Sentenac D, Solimeno S, Swinkels BL, Tarallo M, Terenzi R, Toncelli A, Tonelli M, Tournefier E, Travasso F, Vajente G, van den Brand JF, van der Putten S, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vocca H, and Yvert M
- Abstract
We describe a model evaluating changes in the optical isolation of a Faraday isolator when passing from air to vacuum in terms of different thermal effects in the crystal. The changes are particularly significant in the crystal thermal lensing (refraction index and thermal expansion) and in its Verdet constant and can be ascribed to the less efficient convection cooling of the magneto-optic crystal of the Faraday isolator. An isolation decrease by a factor of 10 is experimentally observed in a Faraday isolator that is used in a gravitational wave experiment (Virgo) with a 10 W input laser when going from air to vacuum. A finite element model simulation reproduces with a great accuracy the experimental data measured on Virgo and on a test bench. A first set of measurements of the thermal lensing has been used to characterize the losses of the crystal, which depend on the sample. The isolation factor measured on Virgo confirms the simulation model and the absorption losses of 0.0016 +/- 0.0002/cm for the TGG magneto-optic crystal used in the Faraday isolator.
- Published
- 2008
- Full Text
- View/download PDF
3. Measurement of the optical parameters of the Virgo interferometer.
- Author
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Acernese F, Alshourbagy M, Amico P, Aoudia S, Antonucci F, Astone P, Avino S, Babusci D, Ballardin G, Barone F, Barsuglia M, Barsotti L, Beauville F, Bigotta S, Birindelli S, Bizouard MA, Boccara AC, Bondu F, Bosi L, Braccini S, Bradaschia C, Brillet A, Brisson V, Brocco L, Buskulic D, Calloni E, Campagna E, Cavalier F, Carbognani F, Cavalieri R, Cella G, Cesarini E, Chassande-Motin E, Christensen N, Clapson AC, Frédéric C, Corda C, Corsi A, Cottone F, Coulon JP, Cuoco E, Dari A, Datillo V, Davier M, del Prete M, De Rosa R, Di Fiore L, Di Virgilio A, Dujardin B, Eleuteri A, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Fourier JD, Frasca S, Frasconi F, Francois O, Gammaitoni L, Garufi F, Genin E, Gennai A, Giazotto A, Giordano G, Giordano L, Gouaty R, Grosjean D, Guidi GM, Hebri S, Heitmann H, Hello P, Karkar S, Kreckelbergh S, La Penna P, Laval M, Leroy N, Letendre N, Lopez B, Lorenzini M, Loriette V, Losurdo G, Mackowski JM, Majorana E, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Mazzoni M, Menzinger F, Moreau J, Milano L, Moins C, Morgado N, Mours B, Nary-Man C, Nocera F, Pai A, Palomba C, Paoletti F, Pardi S, Pasqualetti A, Passaquieti R, Passuello D, Perniola B, Piergiovanni F, Pinard L, Poggiani R, Punturo M, Puppo P, Qipiani K, Rapagnani P, Ricci F, Reita V, Remillieux A, Ricciardi I, Ruggi P, Russo G, Solimeno S, Spallicci A, Stanga R, Tarallo M, Toncelli A, Tonelli M, Tournefier E, Travasso F, Tremola C, Vajente G, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vocca H, and Yvert M
- Abstract
The Virgo interferometer, aimed at detecting gravitational waves, is now in a commissioning phase. Measurements of its optical properties are needed for the understanding of the instrument. We present the techniques developed for the measurement of the optical parameters of Virgo. These parameters are compared with the Virgo specifications.
- Published
- 2007
- Full Text
- View/download PDF
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