Comparison Between NIST and AF Laser Energy Standards Using High Power Lasers.
We report the results of a high-energy laser calorimeter comparison conducted by the National Institute of Standards and Technology (NIST), Boulder, Colorado and the U.S. Air Force Primary Standards laboratory (AFPSL), Heath, Ohio. A laser power meter, used as a transfer standard, was calibrated at each laboratory, sequentially, and the measurement results were compared. These measurements were performed at a nominal power of 800 W and a wavelength of 10.6 μm using CO2 lasers. Excellent measurement agreement (1.02 %) was demonstrated, which was well within each of the expanded uncertainties from the two laboratories involved in this comparison.
National Institute of Standards and Technology, Boulder, CO 80305.
Xiaoyu
X
Li
National Institute of Standards and Technology, Boulder, CO 80305.
Thomas
T
Scott Retired
National Institute of Standards and Technology, Boulder, CO 80305.
Chris
C
Cromer
Air Force Primary Standards Laboratory, Heath, OH 43056.
David
D
Cooper
Air Force Primary Standards Laboratory, Heath, OH 43056.
Steven
S
Comisford
BB calorimeter; K-series calorimeter; beamsplitter; chopper wheel; comparison; high-energy laser; monitor detector; responsivity; transfer standard