High-precision Absolute Distance Measurement using Dual-Laser Frequency Scanned Interferometry Under Realistic Conditions
Hai-Jun Yang, Keith Riles
Abstract
In this paper, we report on new high-precision absolute distance measurements performed with frequency scanned interferometry using a pair of single-mode optical fibers. Absolute distances were determined by counting the interference fringes produced while scanning the frequencies of the two chopped lasers. High-finesse Fabry-Perot interferometers were used to determine frequency changes during scanning. Dual lasers with oppositely scanning directions, combined with a multi-distance-measurement technique previously reported, were used to cancel drift errors and to suppress vibration effects and interference fringe uncertainties. Under realistic conditions, a precision about 0.2 microns was achieved for a distance of 0.41 meters.
Create a lesson
Related papers
Design and performance of the Fast Beam Condition Monitor for luminosity and background measurement at the CMS Experiment in LHC Run 3
The CMS BRIL Collaboration, Eliana Acurio, Ying An et al.
AlGaN/GaN Hall-Effect Sensor for In-Situ Magnetic Field Monitoring of the HSX Stellarator
Yiming Zhao, Wayne Goodman, Thomas Gallenberger et al.
Measuring and Modelling Lag in Amorphous Silicon Flat-Panel X-ray Detectors
Yiyue Huang, Benjamin Young, Andrew Kingston et al.
Signal formation and induction-gap optimization in a THGEM coupled to a resistive plate anode
Arpan Maity, Luca Moleri, Maryna Borysova et al.
Development and Commissioning of the Cryogenic Target Detectors for the Technical Run of the NUCLEUS Experiment
N. Schermer, H. Abele, G. Angloher et al.
Aliased noise characterization and mitigation in BICEP Array 150, 220 and 270 GHz time-division multiplexed detectors
S. Fatigoni, P. A. R. Ade, Z. Ahmed et al.