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NIST Measurement Services: cw Laser Power and Energy Calibrations at NIST



Joshua A. Hadler, Christopher L. Cromer, John H. Lehman


This document describes a calibration service for absolute laser power and energy measurements of laser power meters and detectors used with continuous wave lasers at laser wavelengths between 325 and 1550 nm. In addition to a summary of the calibration procedure, a theoretical discussion of the uncertainty analysis and an overview of the measurement system are presented. A sample calibration report is included in this document that is similar to that which is provided to the customer. The calibration report contains an absolute calibration factor and a summary of the uncertainty assessment for the device under test.
Special Publication (NIST SP) - 250-75
Report Number


laser energy, laser metrology, laser power, optical detector calibration


Hadler, J. , Cromer, C. and Lehman, J. (2007), NIST Measurement Services: cw Laser Power and Energy Calibrations at NIST, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online],, (Accessed May 29, 2024)


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Created June 30, 2007, Updated October 14, 2021