Puedes seguirnos en



Single mode fibers in Optical fiber

These are called as single mode fibers because they support on one mode of propagation(TE,TM or TEM). The optical signal traveling inside this fiber has only one group velocity. Due to single mode traveling, the amount of dispersion is less than than introduced in multimode fibers.  These fibers can have either step index or graded index profile. They are high quality fibers used for wide band long haul communication and they are fabricated from doped silica to reduce internal attenuation.

A highly focused light beam is produced by the light source. This beam travels almost horizontally. The critical angle is close to 90º. As the critical angle is close to 90º, the propagation of different beams is more or less similar, the delays are negligible and the signal reconstruction is easier.

Anuncio publicitario
Escrito por

Administrador de ENGGDRCAOS. Canal dedicado especialmente a la formación del estudiante que aspira a ser ingeniero. Todos los videos son Ingles. Apasionado del universo Apple, estudiante de Ingeniería y Gamer por vocación.




El nuevo Hellcat estará disponible en España a mediados de abril por 14,90€


Twisted pair cable is a commonly used medium and it is cheaper than co-axial cable. There are two types of twister pair cables and...


Opera is a web browser which was developed by Opera software in the mid 90´s, when then competition was low.


The combination of a transmitter and receiver in the satellite is known as transponder. The basic function of a satellite transponder is amplification and...