Related papers: advligorts: The Advanced LIGO Real-Time Digital Co…

The Advanced LIGO Photon Calibrators

The two interferometers of the Laser Interferometry Gravitaional-wave Observatory (LIGO) recently detected gravitational waves from the mergers of binary black hole systems. Accurate calibration of the output of these detectors was crucial…

Instrumentation and Methods for Astrophysics · Physics 2016-12-21 S. Karki , D. Tuyenbayev , S. Kandhasamy , B. P. Abbott , T. D. Abbott , E. H. Anders , J. Berliner , J. Betzwieser , H. P. Daveloza , C. Cahillane , L. Canete , C. Conley , J. R. Gleason , E. Goetz , J. S. Kissel , K. Izumi , G. Mendell , V. Quetschke , M. Rodruck , S. Sachdev , T. Sadecki , P. B. Schwinberg , A. Sottile , M. Wade , A. J. Weinstein , M. West , R. L. Savage

Advanced Virgo: a 2nd generation interferometric gravitational wave detector

Advanced Virgo is the project to upgrade the Virgo interferometric detector of gravitational waves, with the aim of increasing the number of observable galaxies (and thus the detection rate) by three orders of magnitude. The project is now…

General Relativity and Quantum Cosmology · Physics 2014-12-23 F. Acernese , M. Agathos , K. Agatsuma , D. Aisa , N. Allemandou , A. Allocca , J. Amarni , P. Astone , G. Balestri , G. Ballardin , F. Barone , J. -P. Baronick , M. Barsuglia , A. Basti , F. Basti , Th. S. Bauer , V. Bavigadda , M. Bejger , M. G. Beker , C. Belczynski , D. Bersanetti , A. Bertolini , M. Bitossi , M. A. Bizouard , S. Bloemen , M. Blom , M. Boer , G. Bogaert , D. Bondi , F. Bondu , L. Bonelli , R. Bonnand , V. Boschi , L. Bosi , T. Bouedo , C. Bradaschia , M. Branchesi , T. Briant , A. Brillet , V. Brisson , T. Bulik , H. J. Bulten , D. Buskulic , C. Buy , G. Cagnoli , E. Calloni , C. Campeggi , B. Canuel , F. Carbognani , F. Cavalier , R. Cavalieri , G. Cella , E. Cesarini , E. Chassande-Mottin , A. Chincarini , A. Chiummo , S. Chua , F. Cleva , E. Coccia , P. -F. Cohadon , A. Colla , M. Colombini , A. Conte , J. -P. Coulon , E. Cuoco , A. Dalmaz , S. D'Antonio , V. Dattilo , M. Davier , R. Day , G. Debreczeni , J. Degallaix , S. Deléglise , W. Del Pozzo , H. Dereli , R. De Rosa , L. Di Fiore , A. Di Lieto , A. Di Virgilio , M. Doets , V. Dolique , M. Drago , M. Ducrot , G. Endrőczi , V. Fafone , S. Farinon , I. Ferrante , F. Ferrini , F. Fidecaro , I. Fiori , R. Flaminio , J. -D. Fournier , S. Franco , S. Frasca , F. Frasconi , L. Gammaitoni , F. Garufi , M. Gaspard , A. Gatto , G. Gemme , B. Gendre , E. Genin , A. Gennai , S. Ghosh , L. Giacobone , A. Giazotto , R. Gouaty , M. Granata , G. Greco , P. Groot , G. M. Guidi , J. Harms , A. Heidmann , H. Heitmann , P. Hello , G. Hemming , E. Hennes , D. Hofman , P. Jaranowski , R. J. G. Jonker , M. Kasprzack , F. Kéfélian , I. Kowalska , M. Kraan , A. Królak , A. Kutynia , C. Lazzaro , M. Leonardi , N. Leroy , N. Letendre , T. G. F. Li , B. Lieunard , M. Lorenzini , V. Loriette , G. Losurdo , C. Magazzù , E. Majorana , I. Maksimovic , V. Malvezzi , N. Man , V. Mangano , M. Mantovani , F. Marchesoni , F. Marion , J. Marque , F. Martelli , L. Martellini , A. Masserot , D. Meacher , J. Meidam , F. Mezzani , C. Michel , L. Milano , Y. Minenkov , A. Moggi , M. Mohan , M. Montani , N. Morgado , B. Mours , F. Mul , M. F. Nagy , I. Nardecchia , L. Naticchioni , G. Nelemans , I. Neri , M. Neri , F. Nocera , E. Pacaud , C. Palomba , F. Paoletti , A. Paoli , A. Pasqualetti , R. Passaquieti , D. Passuello , M. Perciballi , S. Petit , M. Pichot , F. Piergiovanni , G. Pillant , A Piluso , L. Pinard , R. Poggiani , M. Prijatelj , G. A. Prodi , M. Punturo , P. Puppo , D. S. Rabeling , I. Rácz , P. Rapagnani , M. Razzano , V. Re , T. Regimbau , F. Ricci , F. Robinet , A. Rocchi , L. Rolland , R. Romano , D. Rosińska , P. Ruggi , E. Saracco , B. Sassolas , F. Schimmel , D. Sentenac , V. Sequino , S. Shah , K. Siellez , N. Straniero , B. Swinkels , M. Tacca , M. Tonelli , F. Travasso , M. Turconi , G. Vajente , N. van Bakel , M. van Beuzekom , J. F. J. van den Brand , C. Van Den Broeck , M. V. van der Sluys , J. van Heijningen , M. Vasúth , G. Vedovato , J. Veitch , D. Verkindt , F. Vetrano , A. Viceré , J. -Y. Vinet , G. Visser , H. Vocca , R. Ward , M. Was , L. -W. Wei , M. Yvert , A. Zadrożny , J. -P. Zendri

The Advanced LIGO Input Optics

The Advanced LIGO gravitational wave detectors are nearing their design sensitivity and should begin taking meaningful astrophysical data in the fall of 2015. These resonant optical interferometers will have unprecedented sensitivity to the…

Instrumentation and Detectors · Physics 2016-02-17 Chris Mueller , Muzammil Arain , Giacomo Ciani , Ryan DeRosa , Anamaria Effler , David Feldbaum , Valery Frolov , Paul Fulda , Joseph Gleason , Matthew Heintze , Eleanor King , Keiko Kokeyama , William Korth , Rodica Martin , Adam Mullavey , Jan Poeld , Volker Quetschke , David Reitze , David Tanner , Luke Williams , Guido Mueller

The path to the enhanced and advanced LIGO gravitational-wave detectors

We report on the status of the Laser Interferometric Gravitational-Wave Observatory (LIGO) and the plans and progress towards Enhanced and Advanced LIGO. The initial LIGO detectors have finished a two year long data run during which a full…

General Relativity and Quantum Cosmology · Physics 2019-08-13 Joshua R Smith

The LIGO Suspended Optic Digital Control System

The original LIGO suspension control system [1] used analog circuitry to implement the closed loop damping required for local control of each the suspended optics. Recent developments in analog to digital converters (ADC), digital to analog…

Optics · Physics 2007-05-23 J. Heefner , R. Bork

Advanced LIGO

The Advanced LIGO gravitational wave detectors are second generation instruments designed and built for the two LIGO observatories in Hanford, WA and Livingston, LA. The two instruments are identical in design, and are specialized versions…

General Relativity and Quantum Cosmology · Physics 2015-06-23 The LIGO Scientific Collaboration

Angular control noise in Advanced Virgo and implications for the Einstein Telescope

With significantly improved sensitivity, the Einstein Telescope (ET), along with other upcoming gravitational wave detectors, will mark the beginning of precision gravitational wave astronomy. However, the pursuit of surpassing current…

Instrumentation and Methods for Astrophysics · Physics 2024-03-05 Riccardo Maggiore , Paolo Ruggi , Andreas Freise , Daniel Brown , Jonathan W. Perry , Enzo N. Tapia San Martín , Conor M. Mow-Lowry , Maddalena Mantovani , Julia Casanueva Diaz , Diego Bersanetti , Matteo Tacca

Toward Low-Latency, High-Fidelity Calibration of the LIGO Detectors with Enhanced Monitoring Tools

Accurate and reliable calibration of the Advanced LIGO detectors has enabled a plethora of gravitational-wave discoveries in the detectors' first decade of operation, starting with the ground-breaking discovery, GW150914. In the first…

General Relativity and Quantum Cosmology · Physics 2025-10-10 M. Wade , J. Betzwieser , D. Bhattacharjee , L. Dartez , E. Goetz , J. Kissel , L. Sun , A. Viets , M. Carney , E. Makelele , L. Wade

An Overview of the LIGO Control and Data Acquisition System

The LIGO Control and Data system (CDS) features a tightly coupled and highly integrated control and data acquisition system. Control of the interferometers requires many Multiple Input Multiple Output (MIMO) control loops closed both…

Instrumentation and Detectors · Physics 2007-05-23 R. Bork , R. Abbott , D. Barker , J. Heefner

Improving the Data Quality of Advanced LIGO Based on Early Engineering Run Results

The Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) detectors have completed their initial upgrade phase and will enter the first observing run in late 2015, with detector sensitivity expected to improve in future runs.…

General Relativity and Quantum Cosmology · Physics 2016-01-29 L. K. Nuttall , T. J. Massinger , J. Areeda , J. Betzwieser , S. Dwyer , A. Effler , R. P. Fisher , P. Fritschel , J. S. Kissel , A. P. Lundgren , D. M. Macleod , D. Martynov , J. McIver , A. Mullavey , D. Sigg , J. R. Smith , G. Vajente , A. R. Williamson , C. C. Wipf

Distributed State Machine Supervision for Long-baseline Gravitational-wave Detectors

The Laser Interferometer Gravitational-wave Observatory (LIGO) consists of two identical yet independent, widely-separated, long-baseline gravitational-wave detectors. Each Advanced LIGO detector consists of complex optical-mechanical…

Instrumentation and Methods for Astrophysics · Physics 2016-08-12 Jameson Graef Rollins

LIGO: The Laser Interferometer Gravitational-Wave Observatory

The goal of the Laser Interferometric Gravitational-Wave Observatory (LIGO) is to detect and study gravitational waves of astrophysical origin. Direct detection of gravitational waves holds the promise of testing general relativity in the…

General Relativity and Quantum Cosmology · Physics 2009-09-29 The LIGO Scientific Collaboration , B. Abbott

LIGO Detector Characterization in the Second and Third Observing Runs

The characterization of the Advanced LIGO detectors in the second and third observing runs has increased the sensitivity of the instruments, allowing for a higher number of detectable gravitational-wave signals, and provided confirmation of…

Instrumentation and Methods for Astrophysics · Physics 2021-07-12 D. Davis , J. S. Areeda , B. K. Berger , R. Bruntz , A. Effler , R. C. Essick , R. P. Fisher , P. Godwin , E. Goetz , A. F. Helmling-Cornell , B. Hughey , E. Katsavounidis , A. P. Lundgren , D. M. Macleod , Z. Márka , T. J. Massinger , A. Matas , J. McIver , G. Mo , K. Mogushi , P. Nguyen , L. K. Nuttall , R. M. S. Schofield , D. H. Shoemaker , S. Soni , A. L. Stuver , A. L. Urban , G. Valdes , M. Walker , R. Abbott , C. Adams , R. X. Adhikari , A. Ananyeva , S. Appert , K. Arai , Y. Asali , S. M. Aston , C. Austin , A. M. Baer , M. Ball , S. W. Ballmer , S. Banagiri , D. Barker , C. Barschaw , L. Barsotti , J. Bartlett , J. Betzwieser , R. Beda , D. Bhattacharjee , J. Bidler , G. Billingsley , S. Biscans , C. D. Blair , R. M. Blair , N. Bode , P. Booker , R. Bork , A. Bramley , A. F. Brooks , D. D. Brown , A. Buikema , C. Cahillane , T. A. Callister , G. Caneva Santoro , K. C. Cannon , J. Carlin , K. Chandra , X. Chen , N. Christensen , A. A. Ciobanu , F. Clara , C. M. Compton , S. J. Cooper , K. R. Corley , M. W. Coughlin , S. T. Countryman , P. B. Covas , D. C. Coyne , S. G. Crowder , T. Dal Canton , B. Danila , L. E. H. Datrier , G. S. Davies , T. Dent , N. A. Didio , C. Di Fronzo , K. L. Dooley , J. C. Driggers , P. Dupej , S. E. Dwyer , T. Etzel , M. Evans , T. M. Evans , S. Fairhurst , J. Feicht , A. Fernandez-Galiana , R. Frey , P. Fritschel , V. V. Frolov , P. Fulda , M. Fyffe , B. U. Gadre , J. A. Giaime , K. D. Giardina , G. González , S. Gras , C. Gray , R. Gray , A. C. Green , A. Gupta , E. K. Gustafson , R. Gustafson , J. Hanks , J. Hanson , T. Hardwick , I. W. Harry , R. K. Hasskew , M. C. Heintze , J. Heinzel , N. A. Holland , I. J. Hollows , C. G. Hoy , S. Hughey , S. J. Jadhav , K. Janssens , G. Johns , J. D. Jones , S. Kandhasamy , S. Karki , M. Kasprzack , K. Kawabe , D. Keitel , N. Kijbunchoo , Y. M. Kim , P. J. King , J. S. Kissel , S. Kulkarni , Rahul Kumar , M. Landry , B. B. Lane , B. Lantz , M. Laxen , Y. K. Lecoeuche , J. Leviton , J. Liu , M. Lormand , R. Macas , A. Macedo , M. MacInnis , V. Mandic , G. L. Mansell , S. Márka , B. Martinez , K. Martinovic , D. V. Martynov , K. Mason , F. Matichard , N. Mavalvala , R. McCarthy , D. E. McClelland , S. McCormick , L. McCuller , C. McIsaac , T. McRae , G. Mendell , K. Merfeld , E. L. Merilh , P. M. Meyers , F. Meylahn , I. Michaloliakos , H. Middleton , J. C. Mills , T. Mistry , R. Mittleman , G. Moreno , C. M. Mow-Lowry , S. Mozzon , L. Mueller , N. Mukund , A. Mullavey , J. Muth , T. J. N. Nelson , A. Neunzert , S. Nichols , E. Nitoglia , J. Oberling , J. J. Oh , S. H. Oh , Richard J. Oram , R. G. Ormiston , N. Ormsby , C. Osthelder , D. J. Ottaway , H. Overmier , A. Pai , J. R. Palamos , F. Pannarale , W. Parker , O. Patane , M. Patel , E. Payne , A. Pele , R. Penhorwood , C. J. Perez , K. S. Phukon , M. Pillas , M. Pirello , H. Radkins , K. E. Ramirez , J. W. Richardson , K. Riles , K. Rink , N. A. Robertson , J. G. Rollins , C. L. Romel , J. H. Romie , M. P. Ross , K. Ryan , T. Sadecki , M. Sakellariadou , E. J. Sanchez , L. E. Sanchez , L. Sandles , T. R. Saravanan , R. L. Savage , D. Schaetzl , R. Schnabel , E. Schwartz , D. Sellers , T. Shaffer , D. Sigg , A. M. Sintes , B. J. J. Slagmolen , J. R. Smith , K. Soni , B. Sorazu , A. P. Spencer , K. A. Strain , D. Strom , L. Sun , M. J. Szczepańczyk , J. Tasson , R. Tenorio , M. Thomas , P. Thomas , K. A. Thorne , K. Toland , C. I. Torrie , A. Tran , G. Traylor , M. Trevor , M. Tse , G. Vajente , N. van Remortel , D. C. Vander-Hyde , A. Vargas , J. Veitch , P. J. Veitch , K. Venkateswara , G. Venugopalan , A. D. Viets , V. Villa-Ortega , T. Vo , C. Vorvick , M. Wade , G. S. Wallace , R. L. Ward , J. Warner , B. Weaver , A. J. Weinstein , R. Weiss , K. Wette , D. D. White , L. V. White , C. Whittle , A. R. Williamson , B. Willke , C. C. Wipf , L. Xiao , R. Xu , H. Yamamoto , Hang Yu , Haocun Yu , L. Zhang , Y. Zheng , M. E. Zucker , J. Zweizig

Sensors and Actuators for the Advanced LIGO Mirror Suspensions

We have developed, produced and characterised integrated sensors, actuators and the related read-out and drive electronics that will be used for the control of the Advanced LIGO suspensions. The overall system consists of the BOSEMs…

General Relativity and Quantum Cosmology · Physics 2012-05-28 L. Carbone , S. M. Aston , R. M. Cutler , A. Freise , J. Greenhalgh , J. Heefner , D. Hoyland , N. A. Lockerbie , D. Lodhia , N. A. Robertson , C. C. Speake , K. A. Strain , A. Vecchio

Sensitivity and Performance of the Advanced LIGO Detectors in the Third Observing Run

On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by the Advanced Virgo detector, began the third observing run, a year-long dedicated search for gravitational radiation. The LIGO detectors…

Instrumentation and Methods for Astrophysics · Physics 2020-09-15 LIGO Instrument Science List , : , A. Buikema , C. Cahillane , G. L. Mansell , C. D. Blair , R. Abbott , C. Adams , R. X. Adhikari , A. Ananyeva , S. Appert , K. Arai , J. S. Areeda , Y. Asali , S. M. Aston , C. Austin , A. M. Baer , M. Ball , S. W. Ballmer , S. Banagiri , D. Barker , L. Barsotti , J. Bartlett , B. K. Berger , J. Betzwieser , D. Bhattacharjee , G. Billingsley , S. Biscans , R. M. Blair , N. Bode , P. Booker , R. Bork , A. Bramley , A. F. Brooks , D. D. Brown , K. C. Cannon , X. Chen , A. A. Ciobanu , F. Clara , S. J. Cooper , K. R. Corley , S. T. Countryman , P. B. Covas , D. C. Coyne , L. E. H. Datrier , D. Davis , C. Di Fronzo , K. L. Dooley , J. C. Driggers , P. Dupej , S. E. Dwyer , A. Effler , T. Etzel , M. Evans , T. M. Evans , J. Feicht , A. Fernandez-Galiana , P. Fritschel , V. V. Frolov , P. Fulda , M. Fyffe , J. A. Giaime , K. D. Giardina , P. Godwin , E. Goetz , S. Gras , C. Gray , R. Gray , A. C. Green , E. K. Gustafson , R. Gustafson , J. Hanks , J. Hanson , T. Hardwick , R. K. Hasskew , M. C. Heintze , A. F. Helmling-Cornell , N. A. Holland , J. D. Jones , S. Kandhasamy , S. Karki , M. Kasprzack , K. Kawabe , N. Kijbunchoo , P. J. King , J. S. Kissel , Rahul Kumar , M. Landry , B. B. Lane , B. Lantz , M. Laxen , Y. K. Lecoeuche , J. Leviton , J. Liu , M. Lormand , A. P. Lundgren , R. Macas , M. MacInnis , D. M. Macleod , S. Márka , Z. Márka , D. V. Martynov , K. Mason , T. J. Massinger , F. Matichard , N. Mavalvala , R. McCarthy , D. E. McClelland , S. McCormick , L. McCuller , J. McIver , T. McRae , G. Mendell , K. Merfeld , E. L. Merilh , F. Meylahn , T. Mistry , R. Mittleman , G. Moreno , C. M. Mow-Lowry , S. Mozzon , A. Mullavey , T. J. N. Nelson , P. Nguyen , L. K. Nuttall , J. Oberling , Richard J. Oram , B. O'Reilly , C. Osthelder , D. J. Ottaway , H. Overmier , J. R. Palamos , W. Parker , E. Payne , A. Pele , R. Penhorwood , C. J. Perez , M. Pirello , H. Radkins , K. E. Ramirez , J. W. Richardson , K. Riles , N. A. Robertson , J. G. Rollins , C. L. Romel , J. H. Romie , M. P. Ross , K. Ryan , T. Sadecki , E. J. Sanchez , L. E. Sanchez , T. R. Saravanan , R. L. Savage , D. Schaetzl , R. Schnabel , R. M. S. Schofield , E. Schwartz , D. Sellers , T. Shaffer , D. Sigg , B. J. J. Slagmolen , J. R. Smith , S. Soni , B. Sorazu , A. P. Spencer , K. A. Strain , L. Sun , M. J. Szczepańczyk , M. Thomas , P. Thomas , K. A. Thorne , K. Toland , C. I. Torrie , G. Traylor , M. Tse , A. L. Urban , G. Vajente , G. Valdes , D. C. Vander-Hyde , P. J. Veitch , K. Venkateswara , G. Venugopalan , A. D. Viets , T. Vo , C. Vorvick , M. Wade , R. L. Ward , J. Warner , B. Weaver , R. Weiss , C. Whittle , B. Willke , C. C. Wipf , L. Xiao , H. Yamamoto , Hang Yu , Haocun Yu , L. Zhang , M. E. Zucker , J. Zweizig

LIGO's "Science Reach"

Technical discussions of the Laser Interferometer Gravitational Wave Observatory (LIGO) sensitivity often focus on its effective sensitivity to gravitational waves in a given band; nevertheless, the goal of the LIGO Project is to ``do…

General Relativity and Quantum Cosmology · Physics 2009-11-07 Lee Samuel Finn

Angular control of optical cavities in a radiation pressure dominated regime: the Enhanced LIGO case

We describe the angular sensing and control of the 4 km detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO). The culmination of first generation LIGO detectors, Enhanced LIGO operated between 2009 and 2010 with about…

Instrumentation and Detectors · Physics 2014-11-24 Katherine L Dooley , Lisa Barsotti , Rana X Adhikari , Matthew Evans , Tobin T Fricke , Peter Fritschel , Valera Frolov , Keita Kawabe , Nicolás Smith-Lefebvre

Demonstration of a next-generation wavefront actuator for gravitational-wave detection

In the last decade, the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the European Virgo observatory have opened a new observational window on the universe. These cavity-enhanced laser interferometers sense spacetime…

Instrumentation and Methods for Astrophysics · Physics 2025-09-11 Tyler Rosauer , Huy Tuong Cao , Mohak Bhattacharya , Peter Carney , Luke Johnson , Shane Levin , Cynthia Liang , Xuesi Ma , Luis Martin Gutierrez , Michael Padilla , Liu Tao , Aiden Wilkin , Aidan Brooks , Jonathan W. Richardson

Gravity Spy: Integrating Advanced LIGO Detector Characterization, Machine Learning, and Citizen Science

(abridged for arXiv) With the first direct detection of gravitational waves, the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) has initiated a new field of astronomy by providing an alternate means of sensing the…

General Relativity and Quantum Cosmology · Physics 2017-03-02 Michael Zevin , Scott Coughlin , Sara Bahaadini , Emre Besler , Neda Rohani , Sarah Allen , Miriam Cabero , Kevin Crowston , Aggelos K Katsaggelos , Shane L Larson , Tae Kyoung Lee , Chris Lintott , Tyson B Littenberg , Andrew Lundgren , Carsten Oesterlund , Joshua R Smith , Laura Trouille , Vicky Kalogera

Control strategy to limit duty cycle impact of earthquakes on the LIGO gravitational-wave detectors

Advanced gravitational-wave detectors such as the Laser Interferometer Gravitational-Wave Observatories (LIGO) require an unprecedented level of isolation from the ground. When in operation, they are expected to observe changes in the…

Instrumentation and Detectors · Physics 2019-12-10 S. Biscans , J. Warner , R. Mittleman , C. Buchanan , M. Coughlin , M. Evans , H. Gabbard , J. Harms , B. Lantz , N. Mukund , A. Pele , C. Pezerat , P. Picart , H. Radkins , T. Shaffer