Status of the commissioning of the Virgo interferometer

T. Accadia, F. Acernese, F. Antonucci, P. Astone, G. Ballardin, F. Barone, M. Barsuglia, A. Basti, Th S. Bauer, M. Bebronne, M. G. Beker, A. Belletoile, M. Bitossi, M. A. Bizouard, M. Blom, F. Bondu, L. Bonelli, R. Bonnand, V. Boschi, L. BosiB. Bouhou, S. Braccini, C. Bradaschia, M. Branchesi, T. Briant, A. Brillet, V. Brisson, T. Bulik, H. J. Bulten, D. Buskulic, C. Buy, G. Cagnoli, E. Calloni, B. Canue, F. Carbognani, F. Cavalier, R. Cavalieri, G. Cella, E. Cesarini, O. Chaibi, E. Chassande-Mottin, A. Chincarini, A. Chiummo, F. Cleva, E. Coccia, P. F. Cohadon, C. N. Colacino, J. Colas, A. Colla, M. Colombini, A. Corsi, J. P. Coulon, E. Cuoco, S. D'Antonio, V. Dattilo, M. Davier, R. Day, R. De Rosa, G. Debreczeni, W. Del Pozzo, M. Del Prete, L. Di Fiore, A. Di Lieto, Emilio M. Di Paolo, A. Di Virgilio, A. Dietz, M. Drago, V. Fafone, I. Ferrante, F. Fidecaro, I. Fiori, R. Flaminio, L. A. Forte, J. D. Fournier, J. Franc, S. Frasca, F. Frasconi, M. Galimberti, L. Gammaitoni, F. Garufi, M. Gáspár, G. Gemme, E. Genin, A. Gennai, A. Giazotto, R. Gouaty, M. Granata, C. Greverie, G. M. Guidi, J. F. Hayau, A. Heidmann, H. Heitmann, P. Hello, D. Huet, P. Jaranowski, I. Kowalska, A. Królak, N. Leroy, N. Letendre, T. G F Li, N. Liguori, M. Lorenzini, V. Loriette, G. Losurdo, E. Majorana, I. Maksimovic, N. Man, M. Mantovani, F. Marchesoni, F. Marion, J. Marque, F. Martelli, A. Masserot, C. Michel, L. Milano, Y. Minenkov, M. Mohan, N. Morgado, A. Morgia, S. Mosca, V. Moscatelli, B. Mours, F. Nocera, G. Pagliaroli, L. Palladino, C. Palomba, F. Paoletti, M. Parisi, A. Pasqualetti, R. Passaquieti, D. Passuello, G. Persichetti, M. Pichot, F. Piergiovanni, M. Pietka, L. Pinard, R. Poggiani, M. Prato, G. A. Prodi, M. Punturo, P. Puppo, D. S. Rabeling, I. Rácz, P. Rapagnani, V. Re, T. Regimbau, F. Ricci, F. Robinet, A. Rocchi, L. Rolland, R. Romano, D. Rosínska, P. Ruggi, B. Sassolas, D. Sentenac, L. Sperandio, R. Sturani, B. Swinkels, M. Tacca, A. Toncelli, M. Tonelli, O. Torre, E. Tournefier, F. Travasso, G. Vajente, J. F J Van Den Brand, C. Van Den Broeck, S. Van Der Putten, M. Vasúth, M. Vavoulidis, G. Vedovato, D. Verkindt, F. Vetrano, A. Viceré, J. Y. Vinet, S. Vitale, H. Vocca, R. L. Ward, M. Was, M. Yvert

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Long baseline optical interferometry is a promising technique for the detection of gravitational waves [1], [2], [3], [4]. The French-Italian detector Virgo is a Michelson interferometer with 3 km arms, equipped with high storage time Fabry-Perot cavities. In this kind of detectors, the passage of gravitational waves would be sensed as a differential length variation of the arms. After the end of the second Virgo Science Run, lasting from July 2009 to the beginning of January 2010, some important upgrades have been carried out; in particular, the mirrors of the Fabry-Perot cavities, which act as test masses of the detector, have been replaced by new ones with an higher reflectivity, which should increase by three times the finesse of the cavities; moreover the mirrors are now suspended by silica fibers in a monolithic assembly expected to significantly lower the thermal noise. Finally, the digital signal processing electronics and the global control system have been largely improved. We will present the status of the commissioning of the Virgo interferometer.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages150-158
Number of pages9
Volume1446
DOIs
Publication statusPublished - 2012
Event11th International Symposium on Frontiers of Fundamental Physics, FFP 2010 - Paris, France
Duration: Jul 6 2010Jul 9 2010

Other

Other11th International Symposium on Frontiers of Fundamental Physics, FFP 2010
CountryFrance
CityParis
Period7/6/107/9/10

Fingerprint

interferometers
gravitational waves
cavities
detectors
mirrors
thermal noise
Michelson interferometers
signal processing
interferometry
assembly
silicon dioxide
reflectance
fibers
electronics

Keywords

  • Gravitational Waves
  • Interferometry

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Accadia, T., Acernese, F., Antonucci, F., Astone, P., Ballardin, G., Barone, F., ... Yvert, M. (2012). Status of the commissioning of the Virgo interferometer. In AIP Conference Proceedings (Vol. 1446, pp. 150-158) https://doi.org/10.1063/1.4727993

Status of the commissioning of the Virgo interferometer. / Accadia, T.; Acernese, F.; Antonucci, F.; Astone, P.; Ballardin, G.; Barone, F.; Barsuglia, M.; Basti, A.; Bauer, Th S.; Bebronne, M.; Beker, M. G.; Belletoile, A.; Bitossi, M.; Bizouard, M. A.; Blom, M.; Bondu, F.; Bonelli, L.; Bonnand, R.; Boschi, V.; Bosi, L.; Bouhou, B.; Braccini, S.; Bradaschia, C.; Branchesi, M.; Briant, T.; Brillet, A.; Brisson, V.; Bulik, T.; Bulten, H. J.; Buskulic, D.; Buy, C.; Cagnoli, G.; Calloni, E.; Canue, B.; Carbognani, F.; Cavalier, F.; Cavalieri, R.; Cella, G.; Cesarini, E.; Chaibi, O.; Chassande-Mottin, E.; Chincarini, A.; Chiummo, A.; Cleva, F.; Coccia, E.; Cohadon, P. F.; Colacino, C. N.; Colas, J.; Colla, A.; Colombini, M.; Corsi, A.; Coulon, J. P.; Cuoco, E.; D'Antonio, S.; Dattilo, V.; Davier, M.; Day, R.; De Rosa, R.; Debreczeni, G.; Del Pozzo, W.; Del Prete, M.; Di Fiore, L.; Di Lieto, A.; Di Paolo, Emilio M.; Di Virgilio, A.; Dietz, A.; Drago, M.; Fafone, V.; Ferrante, I.; Fidecaro, F.; Fiori, I.; Flaminio, R.; Forte, L. A.; Fournier, J. D.; Franc, J.; Frasca, S.; Frasconi, F.; Galimberti, M.; Gammaitoni, L.; Garufi, F.; Gáspár, M.; Gemme, G.; Genin, E.; Gennai, A.; Giazotto, A.; Gouaty, R.; Granata, M.; Greverie, C.; Guidi, G. M.; Hayau, J. F.; Heidmann, A.; Heitmann, H.; Hello, P.; Huet, D.; Jaranowski, P.; Kowalska, I.; Królak, A.; Leroy, N.; Letendre, N.; Li, T. G F; Liguori, N.; Lorenzini, M.; Loriette, V.; Losurdo, G.; Majorana, E.; Maksimovic, I.; Man, N.; Mantovani, M.; Marchesoni, F.; Marion, F.; Marque, J.; Martelli, F.; Masserot, A.; Michel, C.; Milano, L.; Minenkov, Y.; Mohan, M.; Morgado, N.; Morgia, A.; Mosca, S.; Moscatelli, V.; Mours, B.; Nocera, F.; Pagliaroli, G.; Palladino, L.; Palomba, C.; Paoletti, F.; Parisi, M.; Pasqualetti, A.; Passaquieti, R.; Passuello, D.; Persichetti, G.; Pichot, M.; Piergiovanni, F.; Pietka, M.; Pinard, L.; Poggiani, R.; Prato, M.; Prodi, G. A.; Punturo, M.; Puppo, P.; Rabeling, D. S.; Rácz, I.; Rapagnani, P.; Re, V.; Regimbau, T.; Ricci, F.; Robinet, F.; Rocchi, A.; Rolland, L.; Romano, R.; Rosínska, D.; Ruggi, P.; Sassolas, B.; Sentenac, D.; Sperandio, L.; Sturani, R.; Swinkels, B.; Tacca, M.; Toncelli, A.; Tonelli, M.; Torre, O.; Tournefier, E.; Travasso, F.; Vajente, G.; Van Den Brand, J. F J; Van Den Broeck, C.; Van Der Putten, S.; Vasúth, M.; Vavoulidis, M.; Vedovato, G.; Verkindt, D.; Vetrano, F.; Viceré, A.; Vinet, J. Y.; Vitale, S.; Vocca, H.; Ward, R. L.; Was, M.; Yvert, M.

AIP Conference Proceedings. Vol. 1446 2012. p. 150-158.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Accadia, T, Acernese, F, Antonucci, F, Astone, P, Ballardin, G, Barone, F, Barsuglia, M, Basti, A, Bauer, TS, Bebronne, M, Beker, MG, Belletoile, A, Bitossi, M, Bizouard, MA, Blom, M, Bondu, F, Bonelli, L, Bonnand, R, Boschi, V, Bosi, L, Bouhou, B, Braccini, S, Bradaschia, C, Branchesi, M, Briant, T, Brillet, A, Brisson, V, Bulik, T, Bulten, HJ, Buskulic, D, Buy, C, Cagnoli, G, Calloni, E, Canue, B, Carbognani, F, Cavalier, F, Cavalieri, R, Cella, G, Cesarini, E, Chaibi, O, Chassande-Mottin, E, Chincarini, A, Chiummo, A, Cleva, F, Coccia, E, Cohadon, PF, Colacino, CN, Colas, J, Colla, A, Colombini, M, Corsi, A, Coulon, JP, Cuoco, E, D'Antonio, S, Dattilo, V, Davier, M, Day, R, De Rosa, R, Debreczeni, G, Del Pozzo, W, Del Prete, M, Di Fiore, L, Di Lieto, A, Di Paolo, EM, Di Virgilio, A, Dietz, A, Drago, M, Fafone, V, Ferrante, I, Fidecaro, F, Fiori, I, Flaminio, R, Forte, LA, Fournier, JD, Franc, J, Frasca, S, Frasconi, F, Galimberti, M, Gammaitoni, L, Garufi, F, Gáspár, M, Gemme, G, Genin, E, Gennai, A, Giazotto, A, Gouaty, R, Granata, M, Greverie, C, Guidi, GM, Hayau, JF, Heidmann, A, Heitmann, H, Hello, P, Huet, D, Jaranowski, P, Kowalska, I, Królak, A, Leroy, N, Letendre, N, Li, TGF, Liguori, N, Lorenzini, M, Loriette, V, Losurdo, G, Majorana, E, Maksimovic, I, Man, N, Mantovani, M, Marchesoni, F, Marion, F, Marque, J, Martelli, F, Masserot, A, Michel, C, Milano, L, Minenkov, Y, Mohan, M, Morgado, N, Morgia, A, Mosca, S, Moscatelli, V, Mours, B, Nocera, F, Pagliaroli, G, Palladino, L, Palomba, C, Paoletti, F, Parisi, M, Pasqualetti, A, Passaquieti, R, Passuello, D, Persichetti, G, Pichot, M, Piergiovanni, F, Pietka, M, Pinard, L, Poggiani, R, Prato, M, Prodi, GA, Punturo, M, Puppo, P, Rabeling, DS, Rácz, I, Rapagnani, P, Re, V, Regimbau, T, Ricci, F, Robinet, F, Rocchi, A, Rolland, L, Romano, R, Rosínska, D, Ruggi, P, Sassolas, B, Sentenac, D, Sperandio, L, Sturani, R, Swinkels, B, Tacca, M, Toncelli, A, Tonelli, M, Torre, O, Tournefier, E, Travasso, F, Vajente, G, Van Den Brand, JFJ, Van Den Broeck, C, Van Der Putten, S, Vasúth, M, Vavoulidis, M, Vedovato, G, Verkindt, D, Vetrano, F, Viceré, A, Vinet, JY, Vitale, S, Vocca, H, Ward, RL, Was, M & Yvert, M 2012, Status of the commissioning of the Virgo interferometer. in AIP Conference Proceedings. vol. 1446, pp. 150-158, 11th International Symposium on Frontiers of Fundamental Physics, FFP 2010, Paris, France, 7/6/10. https://doi.org/10.1063/1.4727993
Accadia T, Acernese F, Antonucci F, Astone P, Ballardin G, Barone F et al. Status of the commissioning of the Virgo interferometer. In AIP Conference Proceedings. Vol. 1446. 2012. p. 150-158 https://doi.org/10.1063/1.4727993
Accadia, T. ; Acernese, F. ; Antonucci, F. ; Astone, P. ; Ballardin, G. ; Barone, F. ; Barsuglia, M. ; Basti, A. ; Bauer, Th S. ; Bebronne, M. ; Beker, M. G. ; Belletoile, A. ; Bitossi, M. ; Bizouard, M. A. ; Blom, M. ; Bondu, F. ; Bonelli, L. ; Bonnand, R. ; Boschi, V. ; Bosi, L. ; Bouhou, B. ; Braccini, S. ; Bradaschia, C. ; Branchesi, M. ; Briant, T. ; Brillet, A. ; Brisson, V. ; Bulik, T. ; Bulten, H. J. ; Buskulic, D. ; Buy, C. ; Cagnoli, G. ; Calloni, E. ; Canue, B. ; Carbognani, F. ; Cavalier, F. ; Cavalieri, R. ; Cella, G. ; Cesarini, E. ; Chaibi, O. ; Chassande-Mottin, E. ; Chincarini, A. ; Chiummo, A. ; Cleva, F. ; Coccia, E. ; Cohadon, P. F. ; Colacino, C. N. ; Colas, J. ; Colla, A. ; Colombini, M. ; Corsi, A. ; Coulon, J. P. ; Cuoco, E. ; D'Antonio, S. ; Dattilo, V. ; Davier, M. ; Day, R. ; De Rosa, R. ; Debreczeni, G. ; Del Pozzo, W. ; Del Prete, M. ; Di Fiore, L. ; Di Lieto, A. ; Di Paolo, Emilio M. ; Di Virgilio, A. ; Dietz, A. ; Drago, M. ; Fafone, V. ; Ferrante, I. ; Fidecaro, F. ; Fiori, I. ; Flaminio, R. ; Forte, L. A. ; Fournier, J. D. ; Franc, J. ; Frasca, S. ; Frasconi, F. ; Galimberti, M. ; Gammaitoni, L. ; Garufi, F. ; Gáspár, M. ; Gemme, G. ; Genin, E. ; Gennai, A. ; Giazotto, A. ; Gouaty, R. ; Granata, M. ; Greverie, C. ; Guidi, G. M. ; Hayau, J. F. ; Heidmann, A. ; Heitmann, H. ; Hello, P. ; Huet, D. ; Jaranowski, P. ; Kowalska, I. ; Królak, A. ; Leroy, N. ; Letendre, N. ; Li, T. G F ; Liguori, N. ; Lorenzini, M. ; Loriette, V. ; Losurdo, G. ; Majorana, E. ; Maksimovic, I. ; Man, N. ; Mantovani, M. ; Marchesoni, F. ; Marion, F. ; Marque, J. ; Martelli, F. ; Masserot, A. ; Michel, C. ; Milano, L. ; Minenkov, Y. ; Mohan, M. ; Morgado, N. ; Morgia, A. ; Mosca, S. ; Moscatelli, V. ; Mours, B. ; Nocera, F. ; Pagliaroli, G. ; Palladino, L. ; Palomba, C. ; Paoletti, F. ; Parisi, M. ; Pasqualetti, A. ; Passaquieti, R. ; Passuello, D. ; Persichetti, G. ; Pichot, M. ; Piergiovanni, F. ; Pietka, M. ; Pinard, L. ; Poggiani, R. ; Prato, M. ; Prodi, G. A. ; Punturo, M. ; Puppo, P. ; Rabeling, D. S. ; Rácz, I. ; Rapagnani, P. ; Re, V. ; Regimbau, T. ; Ricci, F. ; Robinet, F. ; Rocchi, A. ; Rolland, L. ; Romano, R. ; Rosínska, D. ; Ruggi, P. ; Sassolas, B. ; Sentenac, D. ; Sperandio, L. ; Sturani, R. ; Swinkels, B. ; Tacca, M. ; Toncelli, A. ; Tonelli, M. ; Torre, O. ; Tournefier, E. ; Travasso, F. ; Vajente, G. ; Van Den Brand, J. F J ; Van Den Broeck, C. ; Van Der Putten, S. ; Vasúth, M. ; Vavoulidis, M. ; Vedovato, G. ; Verkindt, D. ; Vetrano, F. ; Viceré, A. ; Vinet, J. Y. ; Vitale, S. ; Vocca, H. ; Ward, R. L. ; Was, M. ; Yvert, M. / Status of the commissioning of the Virgo interferometer. AIP Conference Proceedings. Vol. 1446 2012. pp. 150-158
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title = "Status of the commissioning of the Virgo interferometer",
abstract = "Long baseline optical interferometry is a promising technique for the detection of gravitational waves [1], [2], [3], [4]. The French-Italian detector Virgo is a Michelson interferometer with 3 km arms, equipped with high storage time Fabry-Perot cavities. In this kind of detectors, the passage of gravitational waves would be sensed as a differential length variation of the arms. After the end of the second Virgo Science Run, lasting from July 2009 to the beginning of January 2010, some important upgrades have been carried out; in particular, the mirrors of the Fabry-Perot cavities, which act as test masses of the detector, have been replaced by new ones with an higher reflectivity, which should increase by three times the finesse of the cavities; moreover the mirrors are now suspended by silica fibers in a monolithic assembly expected to significantly lower the thermal noise. Finally, the digital signal processing electronics and the global control system have been largely improved. We will present the status of the commissioning of the Virgo interferometer.",
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TY - GEN

T1 - Status of the commissioning of the Virgo interferometer

AU - Accadia, T.

AU - Acernese, F.

AU - Antonucci, F.

AU - Astone, P.

AU - Ballardin, G.

AU - Barone, F.

AU - Barsuglia, M.

AU - Basti, A.

AU - Bauer, Th S.

AU - Bebronne, M.

AU - Beker, M. G.

AU - Belletoile, A.

AU - Bitossi, M.

AU - Bizouard, M. A.

AU - Blom, M.

AU - Bondu, F.

AU - Bonelli, L.

AU - Bonnand, R.

AU - Boschi, V.

AU - Bosi, L.

AU - Bouhou, B.

AU - Braccini, S.

AU - Bradaschia, C.

AU - Branchesi, M.

AU - Briant, T.

AU - Brillet, A.

AU - Brisson, V.

AU - Bulik, T.

AU - Bulten, H. J.

AU - Buskulic, D.

AU - Buy, C.

AU - Cagnoli, G.

AU - Calloni, E.

AU - Canue, B.

AU - Carbognani, F.

AU - Cavalier, F.

AU - Cavalieri, R.

AU - Cella, G.

AU - Cesarini, E.

AU - Chaibi, O.

AU - Chassande-Mottin, E.

AU - Chincarini, A.

AU - Chiummo, A.

AU - Cleva, F.

AU - Coccia, E.

AU - Cohadon, P. F.

AU - Colacino, C. N.

AU - Colas, J.

AU - Colla, A.

AU - Colombini, M.

AU - Corsi, A.

AU - Coulon, J. P.

AU - Cuoco, E.

AU - D'Antonio, S.

AU - Dattilo, V.

AU - Davier, M.

AU - Day, R.

AU - De Rosa, R.

AU - Debreczeni, G.

AU - Del Pozzo, W.

AU - Del Prete, M.

AU - Di Fiore, L.

AU - Di Lieto, A.

AU - Di Paolo, Emilio M.

AU - Di Virgilio, A.

AU - Dietz, A.

AU - Drago, M.

AU - Fafone, V.

AU - Ferrante, I.

AU - Fidecaro, F.

AU - Fiori, I.

AU - Flaminio, R.

AU - Forte, L. A.

AU - Fournier, J. D.

AU - Franc, J.

AU - Frasca, S.

AU - Frasconi, F.

AU - Galimberti, M.

AU - Gammaitoni, L.

AU - Garufi, F.

AU - Gáspár, M.

AU - Gemme, G.

AU - Genin, E.

AU - Gennai, A.

AU - Giazotto, A.

AU - Gouaty, R.

AU - Granata, M.

AU - Greverie, C.

AU - Guidi, G. M.

AU - Hayau, J. F.

AU - Heidmann, A.

AU - Heitmann, H.

AU - Hello, P.

AU - Huet, D.

AU - Jaranowski, P.

AU - Kowalska, I.

AU - Królak, A.

AU - Leroy, N.

AU - Letendre, N.

AU - Li, T. G F

AU - Liguori, N.

AU - Lorenzini, M.

AU - Loriette, V.

AU - Losurdo, G.

AU - Majorana, E.

AU - Maksimovic, I.

AU - Man, N.

AU - Mantovani, M.

AU - Marchesoni, F.

AU - Marion, F.

AU - Marque, J.

AU - Martelli, F.

AU - Masserot, A.

AU - Michel, C.

AU - Milano, L.

AU - Minenkov, Y.

AU - Mohan, M.

AU - Morgado, N.

AU - Morgia, A.

AU - Mosca, S.

AU - Moscatelli, V.

AU - Mours, B.

AU - Nocera, F.

AU - Pagliaroli, G.

AU - Palladino, L.

AU - Palomba, C.

AU - Paoletti, F.

AU - Parisi, M.

AU - Pasqualetti, A.

AU - Passaquieti, R.

AU - Passuello, D.

AU - Persichetti, G.

AU - Pichot, M.

AU - Piergiovanni, F.

AU - Pietka, M.

AU - Pinard, L.

AU - Poggiani, R.

AU - Prato, M.

AU - Prodi, G. A.

AU - Punturo, M.

AU - Puppo, P.

AU - Rabeling, D. S.

AU - Rácz, I.

AU - Rapagnani, P.

AU - Re, V.

AU - Regimbau, T.

AU - Ricci, F.

AU - Robinet, F.

AU - Rocchi, A.

AU - Rolland, L.

AU - Romano, R.

AU - Rosínska, D.

AU - Ruggi, P.

AU - Sassolas, B.

AU - Sentenac, D.

AU - Sperandio, L.

AU - Sturani, R.

AU - Swinkels, B.

AU - Tacca, M.

AU - Toncelli, A.

AU - Tonelli, M.

AU - Torre, O.

AU - Tournefier, E.

AU - Travasso, F.

AU - Vajente, G.

AU - Van Den Brand, J. F J

AU - Van Den Broeck, C.

AU - Van Der Putten, S.

AU - Vasúth, M.

AU - Vavoulidis, M.

AU - Vedovato, G.

AU - Verkindt, D.

AU - Vetrano, F.

AU - Viceré, A.

AU - Vinet, J. Y.

AU - Vitale, S.

AU - Vocca, H.

AU - Ward, R. L.

AU - Was, M.

AU - Yvert, M.

PY - 2012

Y1 - 2012

N2 - Long baseline optical interferometry is a promising technique for the detection of gravitational waves [1], [2], [3], [4]. The French-Italian detector Virgo is a Michelson interferometer with 3 km arms, equipped with high storage time Fabry-Perot cavities. In this kind of detectors, the passage of gravitational waves would be sensed as a differential length variation of the arms. After the end of the second Virgo Science Run, lasting from July 2009 to the beginning of January 2010, some important upgrades have been carried out; in particular, the mirrors of the Fabry-Perot cavities, which act as test masses of the detector, have been replaced by new ones with an higher reflectivity, which should increase by three times the finesse of the cavities; moreover the mirrors are now suspended by silica fibers in a monolithic assembly expected to significantly lower the thermal noise. Finally, the digital signal processing electronics and the global control system have been largely improved. We will present the status of the commissioning of the Virgo interferometer.

AB - Long baseline optical interferometry is a promising technique for the detection of gravitational waves [1], [2], [3], [4]. The French-Italian detector Virgo is a Michelson interferometer with 3 km arms, equipped with high storage time Fabry-Perot cavities. In this kind of detectors, the passage of gravitational waves would be sensed as a differential length variation of the arms. After the end of the second Virgo Science Run, lasting from July 2009 to the beginning of January 2010, some important upgrades have been carried out; in particular, the mirrors of the Fabry-Perot cavities, which act as test masses of the detector, have been replaced by new ones with an higher reflectivity, which should increase by three times the finesse of the cavities; moreover the mirrors are now suspended by silica fibers in a monolithic assembly expected to significantly lower the thermal noise. Finally, the digital signal processing electronics and the global control system have been largely improved. We will present the status of the commissioning of the Virgo interferometer.

KW - Gravitational Waves

KW - Interferometry

UR - http://www.scopus.com/inward/record.url?scp=84874773359&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874773359&partnerID=8YFLogxK

U2 - 10.1063/1.4727993

DO - 10.1063/1.4727993

M3 - Conference contribution

AN - SCOPUS:84874773359

SN - 9780735410435

VL - 1446

SP - 150

EP - 158

BT - AIP Conference Proceedings

ER -