A calorimeter enclosed in a constant temperature environment has been constructed to measure the output energy of a conventional mode ruby or neodymium laser. The calorimeter was designed according to the measurement theory and has an estimated uncertainty of ±2% in the range 5 J to 100 J. The time-temperature curves were analyzed according to the theory with the aid of a computer program.
M. M. Birky, "Calorimeter for Laser Energy Measurements," Appl. Opt. 10, 132-135 (1971)