Radiometric methods for measuring laser output

Abstract

LIST OF ILLUSTRATIONSMeasurements made with different photoelectric receivers agree to about 1.5% using a 1/4-joule pulsed ruby laser as a source. Total uncertainty is estimated to be about 57 .Measurements made using these radiometric methods have been compared with calorimetric measurements and a discrepancy of 97o was observed.

Measurement of laser energy and power

“…Two calorimeters of this design were compared and found to agree within two percent. McSparron et al [35], also at the National Bureau of Standards, have developed a radiometric method for measuring laser energy and power as shown in Fig. 2(a).…”