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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