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Uncertainty calculation for spectral-responsivity measurements



John H. Lehman, Chih-Ming Wang, Marla L. Dowell, Joshua A. Hadler


This paper discusses a procedure for measuring the absolute spectral responsivity of optical-fiber power meters and computation of the calibration uncertainty. The procedure reconciles measurement results associated with a monochromator-based measurement system with those obtained with laser sources coupled with optical fiber. Relative expanded uncertainties based on the methods from the Guide to the Expression of Uncertainty in Measurement and from Supplement 1 to the Guide to the Expression of Uncertainty in Measurement -Propagation of Distributions using a Monte Carlo Method are derived and compared. An example is used to illustrate the procedures and calculation of uncertainties.
Journal of Research (NIST JRES) -


measurement uncertainty, optical fiber, optical power, spectral responsivity


Lehman, J. , Wang, C. , Dowell, M. and Hadler, J. (2009), Uncertainty calculation for spectral-responsivity measurements, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 23, 2024)


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Created September 1, 2009, Updated November 14, 2018