Single Mode Fibre Optic Cable Types

Multi mode fiber has a fairly large core diameter that enables multiple light modes to be propagated and limits the maximum length of a transmission link because of modal dispersion.

Single mode fibre optic cable types.

A typical single mode optical fiber has a core diameter between 8 and 10 5 µm and a cladding diameter of 125 µm. Fiber optic cables used in telecommunication are broadly categorized in two types multimode fiber and single mode fiber cables. In the case of multi mode and single mode cables the glass used to make them is very pure as the refractive properties have to be high standard in order to conduct a data signal in this case made of light through a network. Multimode fiber cable is prefixed with om and single mode fiber cable is prefixed with os.

Fiber optic cable types multimode and single mode. Multi mode optical fiber is a type of optical fiber mostly used for communication over short distances such as within a building or on a campus. Single mode fiber optic cable has a small diametral core that allows only one mode of light to propagate. Fiber optic connectors and cables are present in nearly every communications project that we might sell into be it a das installation or a base station with wireless backhaul you can be certain that fiber jumpers and cabling are being used somewhere in that network.

Single mode means the fiber enables one type of light mode to be propagated at a time. The itu administers the commonly referenced single mode fiber standards documents g 652 through g 655 as required by telecom systems manufcturers and their customers. While multimode means the fiber can propagate multiple modes. The different types of fiber optic cable vary in consistency and size but most are thinner than a human hair.

Itu standards the itu has defined a series of recommendations that describe the geometrical properties and transmissive properties of multimode and single mode fiber optic cables. With the increasing demand for greater capacity over long distance transmission single mode fiber optic cable is designed with various versions. Because of this the number of light reflections created as the light passes through the core decreases lowering attenuation and creating the ability for the signal to travel further. In iso iec 11801 and eia tia standards four types of multimode om1 om2 om3 om4 and two types of single.

Multi mode links can be used for data rates up to 100 gbit s. There are 6 different categories of smfs. G652 g653 g654 g655 g656 and g657 among which g652 and g655 are two options frequently used in wdm.