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Two low-attenuation windows in single-mode fiber
In contrast, 1310 nm and 1550 nm SFP modules are designed for single-mode fiber (SMF), which supports significantly longer distances due to lower attenuation and reduced dispersion effects. Wavelength also directly correlates with reach classification. Choosing the wrong wavelength can result. This document outlines the specifications for a single-mode optical fiber and cable designed for use around the 1310 nm zero-dispersion wavelength, suitable for both the 1310 nm and 1550 nm regions, and compatible with analogue and digital transmission. By selecting the. Optical fibers (usually silica-based glass) exhibit attenuation (loss) that varies strongly with wavelength. These windows are defined by the International Telecommunication Union (ITU-T) and widely adopted by network designers to.
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