DC readout experiment in Enhanced LIGO
The two 4 km long gravitational wave detectors operated by the Laser Interferometer Gravitational-wave Observatory (LIGO) were modified in 2008 to read out the gravitational wave channel using the DC readout form of homodyne detection and to include an optical filter cavity at the output of the dete...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2014
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| Online Access: | http://hdl.handle.net/1721.1/88409 https://orcid.org/0000-0001-8459-4499 https://orcid.org/0000-0003-1983-3187 |
| _version_ | 1826202467762700288 |
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| author | Fricke, T. T. Abbott, Richard Adhikari, Rana X. Dooley, K. L. Frolov, V. V. Kawabe, Keita Slagmolen, Bram J. J. Kissel, Jeffrey S. Smith, Nicolas de Mateo Evans, Matthew J Fritschel, Peter K Waldman, Samuel J. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Fricke, T. T. Abbott, Richard Adhikari, Rana X. Dooley, K. L. Frolov, V. V. Kawabe, Keita Slagmolen, Bram J. J. Kissel, Jeffrey S. Smith, Nicolas de Mateo Evans, Matthew J Fritschel, Peter K Waldman, Samuel J. |
| author_sort | Fricke, T. T. |
| collection | MIT |
| description | The two 4 km long gravitational wave detectors operated by the Laser Interferometer Gravitational-wave Observatory (LIGO) were modified in 2008 to read out the gravitational wave channel using the DC readout form of homodyne detection and to include an optical filter cavity at the output of the detector. As part of the upgrade to Enhanced LIGO, these modifications replaced the radio-frequency (RF) heterodyne system used previously. We describe the motivations for and the implementation of DC readout and the output mode cleaner in Enhanced LIGO. We present characterizations of the system, including measurements and models of the couplings of the noises from the laser source to the gravitational wave readout channel. We show that noise couplings using DC readout are improved over those for RF readout, and we find that the achieved shot-noise-limited sensitivity is consistent with modeled results. |
| first_indexed | 2024-09-23T12:07:56Z |
| format | Article |
| id | mit-1721.1/88409 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:07:56Z |
| publishDate | 2014 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/884092022-09-28T00:21:03Z DC readout experiment in Enhanced LIGO Fricke, T. T. Abbott, Richard Adhikari, Rana X. Dooley, K. L. Frolov, V. V. Kawabe, Keita Slagmolen, Bram J. J. Kissel, Jeffrey S. Smith, Nicolas de Mateo Evans, Matthew J Fritschel, Peter K Waldman, Samuel J. Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Smith-Lefebvre, Nicolas D. Evans, Matthew J. Fritschel, Peter K. Kissel, Jeffrey S. Waldman, Sam J. The two 4 km long gravitational wave detectors operated by the Laser Interferometer Gravitational-wave Observatory (LIGO) were modified in 2008 to read out the gravitational wave channel using the DC readout form of homodyne detection and to include an optical filter cavity at the output of the detector. As part of the upgrade to Enhanced LIGO, these modifications replaced the radio-frequency (RF) heterodyne system used previously. We describe the motivations for and the implementation of DC readout and the output mode cleaner in Enhanced LIGO. We present characterizations of the system, including measurements and models of the couplings of the noises from the laser source to the gravitational wave readout channel. We show that noise couplings using DC readout are improved over those for RF readout, and we find that the achieved shot-noise-limited sensitivity is consistent with modeled results. 2014-07-15T13:02:46Z 2014-07-15T13:02:46Z 2012-02 2012-01 Article http://purl.org/eprint/type/JournalArticle 0264-9381 1361-6382 http://hdl.handle.net/1721.1/88409 Fricke, Tobin T, Nicolas D Smith-Lefebvre, Richard Abbott, Rana Adhikari, Katherine L Dooley, Matthew Evans, Peter Fritschel, et al. “DC Readout Experiment in Enhanced LIGO.” Class. Quantum Grav. 29, no. 6 (March 21, 2012): 065005. https://orcid.org/0000-0001-8459-4499 https://orcid.org/0000-0003-1983-3187 en_US http://dx.doi.org/10.1088/0264-9381/29/6/065005 Classical and Quantum Gravity Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Fricke, T. T. Abbott, Richard Adhikari, Rana X. Dooley, K. L. Frolov, V. V. Kawabe, Keita Slagmolen, Bram J. J. Kissel, Jeffrey S. Smith, Nicolas de Mateo Evans, Matthew J Fritschel, Peter K Waldman, Samuel J. DC readout experiment in Enhanced LIGO |
| title | DC readout experiment in Enhanced LIGO |
| title_full | DC readout experiment in Enhanced LIGO |
| title_fullStr | DC readout experiment in Enhanced LIGO |
| title_full_unstemmed | DC readout experiment in Enhanced LIGO |
| title_short | DC readout experiment in Enhanced LIGO |
| title_sort | dc readout experiment in enhanced ligo |
| url | http://hdl.handle.net/1721.1/88409 https://orcid.org/0000-0001-8459-4499 https://orcid.org/0000-0003-1983-3187 |
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