Details
| Original language | English |
|---|---|
| Article number | 035008 |
| Number of pages | 16 |
| Journal | Classical and quantum gravity |
| Volume | 42 |
| Issue number | 3 |
| Publication status | Published - 13 Jan 2025 |
Abstract
The optical truss interferometer (OTI) is a contingent subsystem proposed for the LISA telescopes to aid in the verification of a 1 pm Hz optical path length stability. Each telescope would be equipped with three pairs of compact fiber-coupled units, each forming an optical cavity with a baseline proportional to the telescope length at different points around the aperture. Employing a Pound-Drever-Hall approach to maintain a modulated laser field on resonance with each cavity, the dimensional stability of the telescope can be measured and verified. We have designed and developed prototype OTI units to demonstrate the capability of measuring stable structures, such as the LISA telescope, with a 1 pm Hz sensitivity using a set of freely mountable fiber-injected cavities. Aside from its initial motivation for the telescope, the OTI can also be readily integrated with other systems to aid in ground testing experiments. In this paper, we outline our experimental setup, measurement results, and analyses of the noise limitations.
Keywords
- gravitational wave detection, interferometry, LISA, optical cavity, optical fiber, optical metrology, optomechanical engineering
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Classical and quantum gravity, Vol. 42, No. 3, 035008, 13.01.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Picometer sensitive prototype of the optical truss interferometer for LISA
AU - Jersey, Kylan
AU - Hollis, Harold
AU - Chia, Han Yu
AU - Sanjuan, Jose
AU - Fulda, Paul
AU - Mueller, Guido
AU - Guzman, Felipe
N1 - Publisher Copyright: © 2025 The Author(s). Published by IOP Publishing Ltd.
PY - 2025/1/13
Y1 - 2025/1/13
N2 - The optical truss interferometer (OTI) is a contingent subsystem proposed for the LISA telescopes to aid in the verification of a 1 pm Hz optical path length stability. Each telescope would be equipped with three pairs of compact fiber-coupled units, each forming an optical cavity with a baseline proportional to the telescope length at different points around the aperture. Employing a Pound-Drever-Hall approach to maintain a modulated laser field on resonance with each cavity, the dimensional stability of the telescope can be measured and verified. We have designed and developed prototype OTI units to demonstrate the capability of measuring stable structures, such as the LISA telescope, with a 1 pm Hz sensitivity using a set of freely mountable fiber-injected cavities. Aside from its initial motivation for the telescope, the OTI can also be readily integrated with other systems to aid in ground testing experiments. In this paper, we outline our experimental setup, measurement results, and analyses of the noise limitations.
AB - The optical truss interferometer (OTI) is a contingent subsystem proposed for the LISA telescopes to aid in the verification of a 1 pm Hz optical path length stability. Each telescope would be equipped with three pairs of compact fiber-coupled units, each forming an optical cavity with a baseline proportional to the telescope length at different points around the aperture. Employing a Pound-Drever-Hall approach to maintain a modulated laser field on resonance with each cavity, the dimensional stability of the telescope can be measured and verified. We have designed and developed prototype OTI units to demonstrate the capability of measuring stable structures, such as the LISA telescope, with a 1 pm Hz sensitivity using a set of freely mountable fiber-injected cavities. Aside from its initial motivation for the telescope, the OTI can also be readily integrated with other systems to aid in ground testing experiments. In this paper, we outline our experimental setup, measurement results, and analyses of the noise limitations.
KW - gravitational wave detection
KW - interferometry
KW - LISA
KW - optical cavity
KW - optical fiber
KW - optical metrology
KW - optomechanical engineering
UR - http://www.scopus.com/inward/record.url?scp=85215561555&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2406.18705
DO - 10.48550/arXiv.2406.18705
M3 - Article
AN - SCOPUS:85215561555
VL - 42
JO - Classical and quantum gravity
JF - Classical and quantum gravity
SN - 0264-9381
IS - 3
M1 - 035008
ER -