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Selecting the Correct Laser Wavelength for Accurate Power/Energy Measurement

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Selecting the Correct Laser Wavelength for Accurate Power/Energy Measurement

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Since power and energy sensors use absorption materials that are not spectrally flat, you always need select the correct laser wavelength on the meter or in the interface software in order to achieve the specified sensor measurement accuracy. Power and energy sensors are calibrated to produce accurate measurement throughout their spectral range, however since they do not detect the wavelength in use, this is one entry that must be manually selected by the operator in order to achieve the specified accuracy.

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