Loss in long-storage-time optical cavities
Long-storage-time Fabry-Perot cavities are a core component of many precision measurement experiments. Optical loss in such cavities is a critical parameter in determining their performance; however, it is very difficult to determine a priori from independent characterisation of the individual cavit...
| Main Authors: | , , , , |
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| Format: | Article |
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Optical Society of America
2019
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| Online Access: | https://hdl.handle.net/1721.1/122799 |
| _version_ | 1826217583177629696 |
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| author | Isogai, Tomoki Miller, J. Kwee, Patrick Barsotti, Lisa Evans, M. |
| author2 | LIGO (Observatory : Massachusetts Institute of Technology) |
| author_facet | LIGO (Observatory : Massachusetts Institute of Technology) Isogai, Tomoki Miller, J. Kwee, Patrick Barsotti, Lisa Evans, M. |
| author_sort | Isogai, Tomoki |
| collection | MIT |
| description | Long-storage-time Fabry-Perot cavities are a core component of many precision measurement experiments. Optical loss in such cavities is a critical parameter in determining their performance; however, it is very difficult to determine a priori from independent characterisation of the individual cavity mirrors. Here, we summarise three techniques for directly measuring this loss in situ and apply them to a high-finesse, near-concentric, 2 m system. Through small modifications of the cavity's length, we explore optical loss as a function of beam spot size over the 1-3 mm range. In this regime we find that optical loss is relatively constant at around 5 ppm per mirror and shows greater dependence on the positions of the beam spots on the cavity optics than on their size. These results have immediate consequences for the application of squeezed light to advanced gravitational-wave interferometers. |
| first_indexed | 2024-09-23T17:05:59Z |
| format | Article |
| id | mit-1721.1/122799 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T17:05:59Z |
| publishDate | 2019 |
| publisher | Optical Society of America |
| record_format | dspace |
| spelling | mit-1721.1/1227992022-09-29T23:40:16Z Loss in long-storage-time optical cavities Isogai, Tomoki Miller, J. Kwee, Patrick Barsotti, Lisa Evans, M. LIGO (Observatory : Massachusetts Institute of Technology) Long-storage-time Fabry-Perot cavities are a core component of many precision measurement experiments. Optical loss in such cavities is a critical parameter in determining their performance; however, it is very difficult to determine a priori from independent characterisation of the individual cavity mirrors. Here, we summarise three techniques for directly measuring this loss in situ and apply them to a high-finesse, near-concentric, 2 m system. Through small modifications of the cavity's length, we explore optical loss as a function of beam spot size over the 1-3 mm range. In this regime we find that optical loss is relatively constant at around 5 ppm per mirror and shows greater dependence on the positions of the beam spots on the cavity optics than on their size. These results have immediate consequences for the application of squeezed light to advanced gravitational-wave interferometers. National Science Foundation (U.S.) (Contract PHY-0757058) 2019-11-07T23:03:43Z 2019-11-07T23:03:43Z 2013-11 2019-03-19T17:40:29Z Article http://purl.org/eprint/type/JournalArticle 1094-4087 https://hdl.handle.net/1721.1/122799 Isogai, T., J. Miller, P. Kwee, L. Barsotti, and M. Evans. “Loss in Long-Storage-Time Optical Cavities.” Optics Express 21, 24 (November 2013): 30114 © 2013 Optical Society of America https://doi.org/10.1364/oe.21.030114 Optics Express Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Optical Society of America arXiv |
| spellingShingle | Isogai, Tomoki Miller, J. Kwee, Patrick Barsotti, Lisa Evans, M. Loss in long-storage-time optical cavities |
| title | Loss in long-storage-time optical cavities |
| title_full | Loss in long-storage-time optical cavities |
| title_fullStr | Loss in long-storage-time optical cavities |
| title_full_unstemmed | Loss in long-storage-time optical cavities |
| title_short | Loss in long-storage-time optical cavities |
| title_sort | loss in long storage time optical cavities |
| url | https://hdl.handle.net/1721.1/122799 |
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