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U.S. Department of Energy
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Laser power and energy measurements. Technical note

Technical Report ·
OSTI ID:7251506
Calorimeters for measuring the output energy of pulsed ruby and neodymium glass lasers have been built and calibrated. The absorbing medium is an aqueous solution of CuSO/sub 4/. Calbration of laser energy detectors has an estimated uncertainty of plus or minus 2% for input energies of 0.1J to 100J. Comparisons of absorption cell calorimeters with metal plate calorimeters agree within 1%. Instrumentation is described that is used for the calibration of cw laser power meters. The calibration unit employs an absorption cell calorimeter to calibrate the output of a photovoltaic cell transfer detector. The power meter to be calibrated is then compared to the calibrated output of the transfer detector.
Research Organization:
National Bureau of Standards, Boulder, Colo. (USA). Inst. for Basic Standards
OSTI ID:
7251506
Report Number(s):
AD-A-018207; NBS-TN-382
Country of Publication:
United States
Language:
English

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