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Geometric contributions to chopper wheel optical attenuation uncertainty

Published

Author(s)

Matthew T. Spidell, Joshua A. Hadler, Michelle S. Stephens, John H. Lehman, Paul A. Williams

Abstract

Calibrated reflective optical choppers are used in NIST’s high power laser calibration services due to their advantages in performance and safety over wedges and semi-transparent materials for beam power reduction. While the design, operation, and calibration of such choppers is generally straightforward, fabrication tolerances and edge geometry must be taken into account for low transmission (
Citation
Metrologia
Issue
54

Keywords

attenuation method, optical power calibration, radiometer, calorimeter, chopper wheel, high power laser

Citation

Spidell, M. , Hadler, J. , Stephens, M. , Lehman, J. and Williams, P. (2017), Geometric contributions to chopper wheel optical attenuation uncertainty, Metrologia, [online], https://doi.org/10.1088/1681-7575/aa75d2/meta (Accessed April 14, 2024)
Created December 9, 2017, Updated November 10, 2018