Demonstration of tilt sensing using a homodyne quadrature interferometric translational sensor
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915287475945472 |
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| author | Nagano, Koji Mori, Karera Izumi, Kiwamu |
| author_facet | Nagano, Koji Mori, Karera Izumi, Kiwamu |
| contents | Future gravitational wave observation in space will demand improvement in the sensitivity of the local sensor for the drag-free control. This paper presents the proposal, design, and demonstration of a new laser interferometric sensor named Quadrature Interferometric Metrology of Translation and Tilt (QUIMETT) for the drag-free local sensor. QUIMETT enables simultaneous measurements of both translational displacement and tilts of a reflective object with a single interferometer package. QUIMETT offers a characteristic feature where the sensitivity to tilt is independent of the interference condition while maintaining the ability to measure the translational displacement for a range greater than the laser wavelength. The tilt-sensing function has been demonstrated in a prototype experiment. The tilt sensitivity remained unchanged in different interference conditions and stayed at 10 nrad/Hz$^{1/2}$ at 0.1 Hz. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_23887 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Demonstration of tilt sensing using a homodyne quadrature interferometric translational sensor Nagano, Koji Mori, Karera Izumi, Kiwamu Instrumentation and Detectors General Relativity and Quantum Cosmology Optics Future gravitational wave observation in space will demand improvement in the sensitivity of the local sensor for the drag-free control. This paper presents the proposal, design, and demonstration of a new laser interferometric sensor named Quadrature Interferometric Metrology of Translation and Tilt (QUIMETT) for the drag-free local sensor. QUIMETT enables simultaneous measurements of both translational displacement and tilts of a reflective object with a single interferometer package. QUIMETT offers a characteristic feature where the sensitivity to tilt is independent of the interference condition while maintaining the ability to measure the translational displacement for a range greater than the laser wavelength. The tilt-sensing function has been demonstrated in a prototype experiment. The tilt sensitivity remained unchanged in different interference conditions and stayed at 10 nrad/Hz$^{1/2}$ at 0.1 Hz. |
| title | Demonstration of tilt sensing using a homodyne quadrature interferometric translational sensor |
| topic | Instrumentation and Detectors General Relativity and Quantum Cosmology Optics |
| url | https://arxiv.org/abs/2410.23887 |