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Understanding Total Measurement Uncertainty in Power Meters and Detectors

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Understanding Total Measurement Uncertainty in Power Meters and Detectors

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It is important that users of calibrated power meters and detectors understand and take into consideration the total uncer- tainty or error that exists in their measurements. Often, users assume that the rated calibration uncertainty of the Newport detector or power meter is the only error in their measurements, however, other factors also contribute to measurement uncertainty. Total measurement error is the sum of all possible sources of error, with detector or meter uncertainty being one of multiple sources of error in the measurement.

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