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相关论文: Tilt-to-length noise subtraction with pointing jit…

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Tilt-to-length (TTL) coupling is expected to be one of the major noise sources in the interferometric phase readouts in TianQin mission. Arising from the angular motion of spacecraft (SC) and the onboard movable optical subassemblies…

天体物理仪器与方法 · 物理学 2024-10-29 Zhizhao Wang , Shuju Yang , Kaihang Wu , Xiaojie Wang , Huizong Duan , Yurong Liang , Xuefeng Zhang , Hsien-Chi Yeh

Tilts of certain elements within a laser interferometer can undesirably couple into measurements as a form of noise, known as tilt-to-length (TTL) coupling. This TTL coupling is anticipated to be one of the primary noise sources in the…

广义相对论与量子宇宙学 · 物理学 2024-11-18 Henry Wegener , Sarah Paczkowski , Marie-Sophie Hartig , Martin Hewitson , Gerhard Heinzel , Gudrun Wanner

For the LISA mission, Tilt-To-Length (TTL) coupling is expected to be one of the dominant instrumental noise contributions after laser frequency noise is suppressed based, on assumptions on the size of the coupling and angular jitter…

天体物理仪器与方法 · 物理学 2026-02-16 Lavinia Heisenberg , Henri Inchauspé , Sarah Paczkowski , Ricardo Waibel

The coupling of the angular jitter of the spacecraft and their sub-assemblies with the optical bench and the telescope into the interferometric length readout will be a major noise source in the LISA mission. We refer to this noise as…

天体物理仪器与方法 · 物理学 2025-02-03 Marie-Sophie Hartig , Joshua Marmor , Daniel George , Sarah Paczkowski , Jose Sanjuan

Tilt-to-length (TTL) noise induced by angular jitter of spacecraft and test masses can affect the sensitivity of space-based gravitational-wave detectors such as LISA, Taiji, and TianQin. Such angular jitter can be measured using the…

广义相对论与量子宇宙学 · 物理学 2026-02-09 Xue Wang , Gang Wang

The Laser Interferometer Space Antenna (LISA) will be the first space-based gravitational wave (GW) observatory. It will measure gravitational wave signals in the frequency regime from 0.1 mHz to 1 Hz. The success of these measurements will…

天体物理仪器与方法 · 物理学 2025-02-26 Marie-Sophie Hartig , Sarah Paczkowski , Martin Hewitson , Gerhard Heinzel , Gudrun Wanner

Tilt-to-length (TTL) noise from angular jitter in LISA is projected to be the dominant noise source in the milli-Hertz band unless corrected in post-processing. The correction is only possible after removing the overwhelming laser phase…

广义相对论与量子宇宙学 · 物理学 2023-02-01 Daniel George , Jose Sanjuan , Paul Fulda , Guido Mueller

The Taiji mission for space-based gravitational wave (GW) detection employs laser interferometry to measure picometer-scale distance variations induced by GWs. The tilt-to-length (TTL) coupling noise in the inter-spacecraft interferometers,…

广义相对论与量子宇宙学 · 物理学 2025-09-25 Qiong Deng , Leiqiao Ye , Ke An , Yidi Fan , Ruihong Gao , Ziren Luo , Minghui Du , Pengcheng Wang , Peng Xu

We present first-order models for tilt-to-length (TTL) coupling in LISA, both for the individual interferometers as well as in the time-delay interferometry (TDI) Michelson observables. These models include the noise contributions from…

天体物理仪器与方法 · 物理学 2024-06-07 Gudrun Wanner , Sweta Shah , Martin Staab , Henry Wegener , Sarah Paczkowski

Pointing-related displacement noises are crucial in space-based gravitational wave detectors, where point-ahead angle control of transmitted laser beams may contribute significantly. For TianQin that features a geocentric concept, the…

广义相对论与量子宇宙学 · 物理学 2024-06-21 Dezhi Wang , Xuefeng Zhang , Hui-Zong Duan

Tilt-to-length (TTL) noise, caused by angular jitter and misalignment, is a major noise source in the inter-satellite interferometer for gravitational wave detection. However, the required level of axis alignment of the optical components…

仪器与探测器 · 物理学 2025-04-11 Peng Qiu , Xiang Lin , Yurong Liang , Hao Yan , Haixing Miao , Zebing Zhou

Tilt-to-length (TTL) coupling in the Laser Interferometer Space Antenna (LISA) can generate spurious displacement noise that potentially affects the measurement of gravitational wave signals. In each test mass interferometer, the coupling…

天体物理仪器与方法 · 物理学 2025-02-05 Paul Edwards , Megha Dave , Alexander Weaver , Mengyuan Zhao , Paul Fulda , Guido Mueller , Gudrun Wanner

The Laser Interferometer Space Antenna (LISA) mission features a three-spacecraft long-arm constellation intended to detect gravitational wave sources in the low-frequency band up to 1 Hz via laser interferometry. The paper presents an…

仪器与探测器 · 物理学 2022-08-24 Niklas Houba , Simon Delchambre , Tobias Ziegler , Gerald Hechenblaikner , Walter Fichter

This paper describes a setup aimed at measuring the so-called Tilt-To-Length (TTL) coupling in the optical benches of the LISA mission. The TTL is the coupling of the angular jitter of any optical setup into the optical path length between…

光学 · 物理学 2026-02-03 Frederic Cleva , Jean-Pierre Coulon , Marco Nardello

Tilt-to-length (TTL) coupling, caused by the jitter of test masses or satellites, is a significant noise source in space-based gravitational wave detection. Calibrating and suppressing TTL coupling noise at the sub-nanometer level is…

天体物理仪器与方法 · 物理学 2024-08-05 Xiang Lin , Qi Xia , Peng Qiu , Yurong Liang , Hao Yan

The arm length and the isolation in space enable LISA to probe for signals unattainable on ground, opening a window to the sub-Hz gravitational-wave universe. The coupling of unavoidable angular spacecraft jitter into the longitudinal…

The proposed space-borne laser interferometric gravitational wave (GW) observatory TianQin adopts a geocentric orbit for its nearly equilateral triangular constellation formed by three identical drag-free satellites. The geocentric distance…

天体物理仪器与方法 · 物理学 2021-06-02 Ming-Yue Zhou , Xin-Chun Hu , Bobing Ye , Shoucun Hu , Dong-Dong Zhu , Xuefeng Zhang , Wei Su , Yan Wang

Objects sensed by laser interferometers are usually not stable in position or orientation. This angular instability can lead to a coupling of angular tilt to apparent longitudinal displacement -- tilt-to-length coupling (TTL). In LISA this…

Tilt-to-length coupling is a technical term for the cross-coupling of angular or lateral jitter into an interferometric phase signal. It is an important noise source in precision interferometers and originates either from changes in the…

仪器与探测器 · 物理学 2022-05-16 Marie-Sophie Hartig , Sönke Schuster , Gudrun Wanner

TianQin is a proposed mission for space-based gravitational-wave detection that features a triangular constellation in circular high Earth orbits. The mission entails three drag-free controlled satellites and long-range laser interferometry…

广义相对论与量子宇宙学 · 物理学 2024-03-05 Yuzhou Fang , Xuefeng Zhang , Fangyuan Fu , Hongyin Li
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