Single Mode Fiber Cable Loss Per Km

Cable plant passive component loss calculating a loss budget for this analysis we ll use our 0 2 km cable plant above without the patchcords so it has 3 connections and one splice.

Single mode fiber cable loss per km.

1 0 db per km 1310 nm. The fiber strand manufacturer provides a loss factor in terms of db per kilometer. Single mode link at 1310nm with 2 connector pairs and 5 splices. 1 0 db per km 1550 nm.

3 5 db per km 850 nm. Fiber loss depends heavily on the operating wavelength. For example single mode fiber uses 9 125 um and multimode uses 62 5 125 or 50 125. In ansi tia 568 b 3 the modal bandwidth of 62 5 µm fiber was 160 mhz km not the 200 mhz km found in the current ansi tia 568 3 d.

Type of fiber most single mode fibers have a loss factor of between 0 25 1550nm. It can transport data for up to 10km at 1310nm or up to 40km at 1550nm. Cost general loss bending loss chromatic dispersion and polarization mode dispersion and with varying levels of water peak performance at 1383 nm. Link loss fiber length km fiber attenuation per km splice loss of splices connector loss of connectors safety margin for example.

This change was done to harmonize with iso iec 11801. Single mode fiber comes in varying grades typically designed to optimize. 0 5 db per km 1550 nm. Fiber loss for multimode fiber the loss is about 3 db per km for 850 nm sources 1 db per km for 1300 nm.

Outside plant tia only 0 5 db per km 1310 nm. A total fiber loss calculation is made based on the distance x the loss factor. Link loss fiber length km x fiber attenuation per km splice loss x of splices connector loss x of connectors safety margin for example assume a 40km single mode link at 1310nm with 2 connector pairs and 5 splices. Fiber loss at the operating wavelength over 200m 0 2 km.

There is also a loss limit associated with these distances too. Assume a 40 km. A single ray of light travels down the fiber core with a mode field diameter of about 9 5 um. This 9 125um micron single mode fiber optic cable is ideal for connecting 1g 10g ethernet connections hdmi over fiber optic extenders or from your fiber router for fiber to the home ftth.

Multimode and single mode fibers use different fiber types or sizes. 3 5 and 1 5 db km max per eia tia 568 this roughly translates into a loss of 0 1 db per 100 feet 30 m for 850 nm 0 1 db per 300 feet 100 m for 1300 nm. 1 5 db per km 1300 nm. Practical fibers have the lowest loss at 1550 nm and the highest loss.