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New and Future Capabilities for CW Laser Power Measurements at NIST



Joshua A. Hadler


The CW Laser Radiometry project in the Optoelectronics Division at NIST is concerned with measuring steady-state laser, detector, and component properties such as laser power and energy, laser beam profile, detector spatial and angular responsivity, detector spectral responsivity, detector linearity and the attenuation of transmission components. We will discuss the ongoing program for improvement of the NIST capabilities for CW laser power measurements. Recent improvements include: Tunable CW lasers (tunable dye, and Ti:Sapph) for broader spectral coverage, higher power CW lasers (up to 25 W for select wavelengths), improved transfer standards and direct traceability to a laser optimized cryogenic radiometer (LOCR), resulting in improved calibration accuracy.
Proceedings Title
Proc., Measurement Science Conference
Conference Dates
January 13-17, 2003
Conference Location
Anaheim , CA


calibration, cryogenic radiometer, detector, laser, laser calorimeter, optical fiber, radiometry, standard


Hadler, J. (2003), New and Future Capabilities for CW Laser Power Measurements at NIST, Proc., Measurement Science Conference, Anaheim , CA, [online], (Accessed June 20, 2024)


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Created January 1, 2003, Updated January 27, 2020