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Spectral Attenuation Measurement in CWDM / DWDM Transmission Link

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Spectral Attenuation Measurement in CWDM / DWDM Transmission Link

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In years past, transmission wavelengths were 850 nm, 1310 nm, and 1550 nm. Fiber optic manufacturers designed their products for best performance at those wavelengths. The advent of dense wave division multiplexing (DWDM) transmission technology pushed to larger wavelength bands coverage, and fibers designed for the C+L band (1525-1625 nm) are now commonly available. The use of the S band (1470-1525 nm) is likely to follow shortly

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