
A measurement of the wavelengths that can be read by an optical power meter. Most newer optical power meters have a wavelength range of around 800 nm to 1650 nm. A wide wavelength range allows an optical power meter to work with a variety of light sources
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Wavelength range is the name given to the entire measurable spectrum of electromagnetic radiation. This range includes visible light (between 400 and 800 nm), ultraviolet radiation (lower than 400) and infrared radiation (above 800 nm)
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