Projects per year
Abstract
The Einstein Telescope (ET) is a proposed future gravitational wave detector. Its design is original, using a triangular orientation of three detectors and a xylophone configuration, splitting each detector into one high-frequency and one low-frequency system. In other aspects the current design retains the dual-recycled Michelson interferometer typical of current detectors, such as Advanced LIGO. In this paper, we investigate the feasibility of replacing the low-frequency part of the ET detectors with a Sagnac interferometer. We show that a Sagnac interferometer, using realistic optical parameters based on the ET design, could provide a similar level of radiation pressure noise suppression without the need for a signal recycling mirror and the extensive filter cavities. We consider the practical issues of a realistic, power-recycled Sagnac, using linear arm cavities and polarizing optics. In particular, we investigate the effects of nonperfect polarizing optics and propose a new method for the generation of a local oscillator field similar to the DC readout scheme of current detectors.
Original language | English |
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Journal | Physical Review D |
Volume | 87 |
Issue number | 9 |
DOIs | |
Publication status | Published - 14 May 2013 |
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Dive into the research topics of 'Realistic polarizing Sagnac topology with DC readout for the Einstein Telescope'. Together they form a unique fingerprint.Projects
- 4 Finished
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Birmingham Astrophysics : Consolidated Grant 2013-2016
Vecchio, A., Ponman, T., Freise, A., Smith, G., Speake, C., Mandel, I., Cruise, M., Raychaudhury, S. & Stevens, I.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/13 → 30/09/16
Project: Research Councils
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Einstein Telescope R&D
Freise, A., Mandel, I. & Vecchio, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/13 → 31/03/16
Project: Research Councils
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Bridging Advanced LIGO to Desiign Performance and Further Sensitivity Enhancements
Vecchio, A. & Freise, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/07/11 → 30/06/13
Project: Research Councils
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UK Involvement in the Advanced LIGO Gravitational Wave Project
Vecchio, A., Castelli, C. & Cruise, M.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/06/03 → 31/03/11
Project: Research Councils