Optical Fiber Transmission Media

Flashcards on optical fiber transmission media, covering theory, principles, characteristics, and transmission properties.

Optical Fiber

A transmission medium using light pulses to carry data, offering high bandwidth and long-distance communication capabilities.

Velocity of Light

The speed at which light travels, approximately 300 x 10^6 meters per second, making it an excellent medium for data transmission.

John Tyndall's Experiment

Experiment in 1880 demonstrating light propagation within a jet stream of water using total internal reflection.

Total Internal Reflection

The concept of trapping light within a medium due to the refractive index differences, used in optical fibers for telecommunications.

OTDR (Optical Time Domain Reflectometer)

A testing tool that relies on impurities in the optical fiber to detect breaks by analyzing reflected light signals.

Fusion Splicing

The process of fusing broken glass fibers together using special devices to create a connection.

Advantage of Optical Fiber

The advantage of offering scale bandwidth and faster information transmission compared to copper cables.

Crosstalk

The issue eliminated in optical fiber due to the absence of RFI and EMI.

LED Source

A type of light source used in optical fiber communication that is less expensive but typically used with multimode fibers.

Core Network

Permanent optical fiber links connecting telephone exchanges; also known as trunk networks.

InterCapital Networks

Networks connecting cities to cities, based on optical fiber cable for long-distance communication.

Access Network

The distribution network that connects to buildings and houses, also known as customer access networks (CAN).

Refractive Index

It is a measure of how much light slows down when passing through a substance.

Refraction

The condition where the ray of light bends and exits the core due to exceeding the critical angle of acceptance.

Multimode Optical Fiber

A fiber that supports multiple modes of light, resulting in different angles of incidence.

Single Mode Optical Fiber

A fiber designed to allow only one mode or ray of light to travel through the center of the core.

Attenuation

The loss of signal strength in optical fibers due to absorption and scattering.