LASER HAZARD EVALUATION METHOD FOR MIDDLE INFRARED-LASER SYSTEMS

Hazard evaluation methods for lasers, with wavelengths greater than 1. 4 mu m (mostly in the middle infrared), have changed significantly in the current version of the American National Standard for the Safe Use of Lasers, ANSI 2136.1-1993. A correct evaluation involves comparing the hazard potential based on two evaluation models; one based on indi vidual pulses and the other based on an equivalent continuous-wave exp osure. An example of the hazard evaluation method within this spectral region is provided.