Flowing-water optical power meter for primary-standard, multi-kilowatt laser power measurements*This work of the U.S. Government is not subject to U.S. copyright. (9th May 2018)

• Record Type: Journal Article
• Authors: Williams, P A; Hadler, J A; Cromer, C; West, J; Li, X; Lehman, J H
• Is Part Of: Metrologia. Volume 55:Number 3(2018:Jun.)
• Page Start: 427
• Page End: 436
• Publication Date: 2018-05-09
• Subjects: radiation pressure -- radiometry -- laser power; Weights and measures -- Periodicals; Weights and Measures -- Periodicals; 530.805
• DOI: 10.1088/1681-7575/aaae78
• Languages: English
• ISSNs: 0026-1394

Abstract

Abstract: A primary-standard flowing-water optical power meter for measuring multi-kilowatt laser emission has been built and operated. The design and operational details of this primary standard are described, and a full uncertainty analysis is provided covering the measurement range from 1–10 kW with an expanded uncertainty of 1.2%. Validating measurements at 5 kW and 10 kW show agreement with other measurement techniques to within the measurement uncertainty.