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The equipment used for communications over multi-mode optical fiber is less expensive than that for single-mode optical fiber. [1] Typical transmission speed and distance limits are 100 Mbit/s for distances up to 2 km (), 1 Gbit/s up to 1000 m, and 10 Gbit/s up to 550 m.
Single-mode fibers are therefore better at retaining the fidelity of each light pulse over longer distances than multi-mode fibers. For these reasons, single-mode fibers can have a higher bandwidth than multi-mode fibers. Equipment for single-mode fiber is more expensive than equipment for multi-mode optical fiber, but the single-mode fiber ...
SFP modules support a variety of distances via multi-mode and single-mode optical fiber as shown in the table below. SFP modules use duplex fiber cabling with LC connectors. SFP-DD modules are used in high-density applications that need to double the throughput of traditional SFP ports.
Fibers that support many propagation paths or transverse modes are called multi-mode fibers, while those that support a single mode are called single-mode fibers (SMF). [7] Multi-mode fibers generally have a wider core diameter [8] and are used for short-distance communication links and for applications where high power must be transmitted. [9]
Multi-mode fiber, LC connector, with black or Beige color coding SX – 850 nm, for a maximum of 550 m; Multi-mode fiber, LC connector, with blue color coding FX – 1300 nm, for a distance up to 5 km. LFX (name dependent on manufacturer) – 1310 nm, for a distance up to 5 km. Single-mode fiber, LC connector, with blue color coding
The first 10 Gigabit Ethernet standard, IEEE Std 802.3ae-2002, was published in 2002. Subsequent standards encompass media types for single-mode fiber (long haul), multi-mode fiber (up to 400 m), copper backplane (up to 1 m) and copper twisted pair (up to 100 m). All 10-gigabit standards were consolidated into IEEE Std 802.3-2008.
OM5: Multimode, 50 μm core; minimum modal bandwidth of 4700 MHz·km at 850 nm and 2470 MHz·km at 953 nm; OS1*: Single-mode, maximum attenuation 1 dB/km at 1310 and 1550 nm; OS1a: Single-mode, maximum attenuation 1 dB/km at 1310, 1383, and 1550 nm; OS2: Single-mode, maximum attenuation 0.4 dB/km at 1310, 1383, and 1550 nm *Grandfathered
It operates in the 1550 nm band allowing for distances of up to 40 km to be reached. 10GBASE-L was also defined for single-mode fiber operations, uses the 1300 nm band allowing it to reach up to 10 km. 10GBASE-S was defined for use in multimode fiber and ultimately costs less than the other 10GbE standards. It uses 850 nm lasers and only ...