Progress Toward Radiation-Pressure-Based Measurement of High-Power Laser Emission

by Paul A. Williams, Joshua A. Hadler, Daniel King, Robert Lee, Frank C. Maring, Gordon A. Shaw, Nathan A. Tomlin, Marla L. Dowell, John H. Lehman

We present an overview of our efforts toward using optical radiation pressure as a means to measure optical power from high-power lasers. Early results with measurements ranging from tens of watts to 92 kW prove the concept, but validation uncertainties between 7 and 13 % must be reduced. We discuss improvements that are in progress for our next-generation radiation-pressure optical-power meter. >> Read Full Article (PDF)