Cromer, C.
, Li, X.
, Lehman, J.
and Dowell, M.
(2011),
Absolute high-power laser measurements with a flowing water power meter, 11th International Conference on New Developments and Applications in Optical Radiometry, Maui, HI, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=908219
(Accessed October 10, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Absolute high-power laser measurements with a flowing water power meter
Published
Author(s)
, , ,
Abstract
We describe a novel flowing water power meter (FWOPM) for high-power laser radiometry in the range of 50 W to 10 kW. The FWOPM has several design features; a rotating mirror oriented at 45° with respect to the incoming radiation, a conical light-trapping cavity coated with a multiwall carbon nanotube composite and a modular electrical heater for calibration. The design is modular to facilitate shipment to the laser facility and for scaling of measurements up to 100 kW. We have demonstrated 1 % relative uncertainty with laser power measurements near 5 kW at 1.06 υm and 10.6 υm wavelengths.Proceedings Title
11th International Conference on New Developments and Applications in Optical Radiometry
Conference Dates
September 18-23, 2011
Conference Location
Maui, HI
Pub Type
Conferences
Download Paper
Keywords
calorimeter, calorimetry, carbon nanotubes, flowing water power meter, laser power meter, radiometry
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created September 18, 2011, Updated February 19, 2017