Results 1 to 10 of about 10,414 (210)

Tilt-to-Length Coupling Analysis of an Off-Axis Optical Bench Design for NGGM

Remote Sensing, 2023
A new off-axis optical design alternative to that of the GRACE Follow-on mission for future NGGM missions is considered. In place of the triple-mirror assembly of the GRACE Follow-on mission, a laser retro-reflector is instead generated by means of lens ...
Kailan Wu, Jingui Wu, Bo Peng, Jianjun Jia, Honggang Luo, Yun Wang, Yongchao Zheng, Yichao Yang, Xuling Lin, Yun-Kau Lau   +9 more
doaj   +6 more sources

Alternative Approach to Tilt-to-Length Coupling Estimation for Laser Ranging Interferometers in Future Gravity Missions

Remote Sensing
Tilt-to-length coupling, a non-constant systematic error source caused by satellite attitude variations, has been observed in the laser ranging signals of the GRACE Follow-On mission. This error can be corrected by certain calibration maneuvers performed
Zhizhao Wang, Shuju Yang, Fuling Jia, Kaihang Wu, Fangjie Liao, Huizong Duan, Hsien-Chi Yeh   +6 more
doaj   +6 more sources

The Suppression Effect of an Imaging System on the Geometric Tilt-to-Length Coupling in a Test Mass Interferometer

Photonics
Tilt-to-length (TTL) coupling noise arises from angular misalignments of interfering beams in optical path length (OPL) measurements and significantly impacts the accuracy of interferometry measurement systems.
Jia Shen, Shaoxin Wang, Keqi Qi, Mengyang Zhao, Heshan Liu, Ran Yang, Pan Li, Wei Tao, Ziren Luo, Ruihong Gao   +9 more
doaj   +4 more sources

Optical Suppression of Tilt-to-Length Coupling in the LISA Long-Arm Interferometer [PDF]

Physical Review Applied, 2020
13 pages, 10 ...
Gudrun Wanner, Oliver Gerberding, MIGUEL Dovale Alvarez   +2 more
exaly   +22 more sources

Tilt-to-length coupling in LISA Pathfinder: A data analysis

Physical Review D, 2023
We present a study of the tilt-to-length coupling noise during the LISA Pathfinder mission and how it depended on the system’s alignment. Tilt-to-length coupling noise is the unwanted coupling of angular and lateral spacecraft or test mass motion into the primary interferometric displacement readout.
M Hueller, A Wittchen, M-S Hartig
exaly   +11 more sources

Misalignment Decoupling and Tilt-to-Length Suppression in a Micro-Actuated Beam Steering Mechanism via Nonlinear Cyclic Modulation [PDF]

Micromachines
Tilt-to-length (TTL) coupling is a critical noise source in high-precision interferometric measurements, particularly in systems involving angular actuation and beam steering.
Yang Li, Changkang Fu, Hongming Zhang, Hongyang Guo, Zhiqiang Zhao, Mengyang Zhao, Ruihong Gao, Qiang Wang, Chen Wang, Caiwen Ma, Dong He, Yongmei Huang   +11 more
doaj   +2 more sources

Iatrogenic coronal-sagittal coupling driven by a 12.4° rotational mismatch in manual total knee arthroplasty and precise decoupling with robotic assistance: a radiographic retrospective cohort study [PDF]

Arthroplasty
Background Achieving precise reconstruction of both the coronal and sagittal planes is pivotal in total knee arthroplasty (TKA). However, conventional manual TKA (M-TKA) may induce an unintended “coronal-sagittal coupling” effect, where adjustments in ...
Hongxu Li, Qihan Ma, Haoyang Liu, Hangyu Ping, Mengran Shen, Debo Yue, Bailiang Wang, Jinhui Ma   +7 more
doaj   +2 more sources

Tolerance Analysis of Test Mass Alignment Errors for Space-Based Gravitational Wave Detection [PDF]

Sensors
Space-based gravitational wave detection imposes extremely high requirements on displacement measurement accuracy, with its core measurement components being laser interferometers and inertial sensors.
Jun Ke, Ruihong Gao, Jinghan Liu, Mengyang Zhao, Ziren Luo, Jia Shen, Peng Dong   +6 more
doaj   +2 more sources

Method to Remove Tilt-to-Length Coupling Caused by Interference of Flat-Top Beam and Gaussian Beam [PDF]

Applied Sciences, 2019
We discuss the tilt-to-length (TTL) coupling noise caused by interference between a flat-top beam and a Gaussian beam. Several physical models are presented to research the effects of non-diffracted and diffracted beams on TTL noise.
Ya Zhao, Zhi Wang, Yupeng Li, Chao Fang, Heshan Liu, Huilong Gao   +5 more
doaj   +2 more sources

Geometric tilt-to-length coupling in precision interferometry: mechanisms and analytical descriptions

Journal of Optics (United Kingdom), 2022
Abstract Tilt-to-length (TTL) 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 optical path lengths or from wavefront and clipping effects.
Gudrun Wanner, Sönke Schuster, Marie-Sophie Hartig   +2 more
exaly   +4 more sources