Telecom fibers are optical fibers which are used in optical Fiber communications.
Mainly the following types of telecom fibers are used:
Fused Silica single-mode fibers with very low losses (e.g. 0.2 dB/km) are used for long-haul DataTransmission (tens or hundreds of kilometers) with very high transmission capacity.
Fused silica Multimode fibers are suitable for shorter distances of e.g. hundreds of meters (e.g. within storage area networks): they are less critical to handle, essentially due to much larger Core areas, but intermode Dispersion limits the transmission distance.
Plastic optical fibers (also multimode), typically made of PMMA (acrylic), represent the cheapest solution for short-range data transmission e.g. in home networks.
As a standard telecom fiber for the 1.3-Î¼m or 1.5-Î¼m Wavelength region, one typically takes the SMF-28 of Corning, or the enhanced Version SMF-28e. The Mode field diameter is â‰ˆ9.2 Î¼m at 1310 NM (effective mode area = 67 Î¼m2), or 10.4 Î¼m at 1550 nm (85 Î¼m2). The single-mode cut-off is at 1260 nm.