Understanding Different Fibre Networks

Fibre, Fibre, Fibre! This communication connectivity seems to be the fundamental concept that we have been discussing over and over.

To recap Fibre-optic communication is the method of transmitting data information from one place to another making use of pulses of light that travel along the cabling. With its numerous advantages over other types of legacy copper connectivity, Fibre is used by many telecommunication companies to transmit VoIP, and data as well as connect cloud-based technologies.

The operation of Fibre happens through the creation of an optical signal by a transmitter that relays the signal along the Fibre. The signal travelling along Fibre is received and converted into an electrical signal.

In order to further comprehend Fibre, you need to have a basic understanding of the three different types of Fibre Networks that are in use today.


An Ethernet is a physical data link that is used for Local Area Networks (LANs) that transmits data throughout a single network.

Presently, Ethernet technology in LAN infrastructures are able to extend a technologies performance up to 1000 Mbps. In higher level network protocols like Internet Protocol (IP) use Ethernet as their transmission medium.

Data is transported along the Ethernet in protocol units called frames.


Carrier Grade Ethernet

Carrier Grade Ethernet extends from the LAN to the Wide Area Network (WAN) which enables companies to connect their LANs to Service Provider networks.

It bridges LANs in separate locations together as if they were one network.

The following are Carrier Grade Ethernet attributes:

  • Extends Local Networks to Subscriber Networks
  • Has MPLS for Quality of Services (QoS)
  • Carrier Ethernet over SONET
  • Multipoint vs Point-to-Point connection

Carrier Ethernet


A Gigabit Passive Optical Network is a point-to-multipoint access mechanism that makes use of passive splitters in the Fibre distribution Network. This enables one single feeding Fibre from the Providers central Office to serve multiple homes and small businesses.

GPON has a downstream capacity of 2.488 Gbps and an upstream capacity of 1.244 Gbps which is shared among end users.An encryptions is used to keep each end users data secure and private from other users on the Network.