Hallam, J.; Chelkowski, S.; Freise, A.; Barr, W.; Hild, S. et al.: Lateral input-optic displacement in a diffractive Fabry-Perot cavity. In: Journal of Physics: Conference Series 228 (2010), 12022. DOI:
https://doi.org/10.1088/1742-6596/228/1/012022
Zusammenfassung: |
All-reflective configurations have been suggested for future laser-interferometric gravitational wave detectors. Diffraction gratings would be required as core elements of any such design. In this paper, coupling of lateral grating displacement to the output ports of a diffractive Fabry-Perot cavity was derived using a steady-state technique. The signal to noise ratio versus a potential gravitational wave signal was compared for each cavity output port. For a cavity featuring parameters similar to the planned Advanced Virgo instrument, we found the forward-reflected port offers the highest SNR at low frequencies. Furthermore, the lateral isolation suspension requirements were relaxed by a factor of twenty at a frequency of 10Hz versus the transmitted port.
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Lizenzbestimmungen: |
CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/
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Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2010 |
Schlagwörter (deutsch): |
Gravitationswelle
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Schlagwörter (englisch): |
Core elements, Fabry-Perot cavity, Gravitational wave detectors, Gravitational-wave signals, Lateral isolation, Low frequency, Output ports, Cavity resonators, Fabry-Perot interferometers, Gravitational effects, Laser interferometry, Signal to noise ratio, Gravity waves
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Fachliche Zuordnung (DDC): |
530 | Physik
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Kontrollierte Schlagwörter: |
Konferenzschrift
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