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visible spectrum |
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visible spectrum [′viz·ə·bəl ′spek·trəm] (spectroscopy) The range of wavelengths of visible radiation. A display or graph of the intensity of visible radiation emitted or absorbed by a material as a function of wavelength or some related parameter. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Wavelength calibration references are needed to calibrate wavelength-measuring instruments such as optical spectrum analyzers. Infrared radiation, beginning just beyond the red end of the optical spectrum, has longer wavelengths and lower energy than visible light. It also provides an overview of the various segments of the market, namely, optical time domain reflectometers (OTDR), optical light sources (OLS), optical power meters (OPM), optical loss test sets (OLTS), remote fiber test systems (RFTS), dense wave division multiplexing (DWDM) systems, and optical spectrum analyzers (OSA). |
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