« Reply #4 on: June 19, 2018, 07:03:55 PM »
Fiber Optics also known as Optical Fiber :
• Fibers of glass
• Usually 120 micrometers in diameter
• Used to carry signals in the form of light over distances more than 1 km.
- SPEED: Fiber optic networks operate at high speeds - up into the gigabits
- BANDWIDTH: large carrying capacity
- DISTANCE: Signals can be transmitted further without needing to be "refreshed" or strengthened.
- RESISTANCE: Greater resistance to electromagnetic noise such as radios, motors or other nearby cables.
- MAINTENANCE: Fiber optic cables costs much less to maintain.
- Core – thin glass center of the fiber where light travels.
- Cladding – outer optical material surrounding the core Buffer
- Coating – plastic coating that protects the fiber.
Advantages of Optical Fibre
• Thinner
• Less Expensive
• Higher Carrying Capacity
• Less Signal Degradation
• Light Signals
• Non-Flammable
• Light Weight
Areas of Application
• Telecommunications
• Local Area Networks
• Cable TV
• CCTV
Optical fibers come in two types:
•Single-mode fibers – used to transmit one signal per fiber (used in telephone and cable TV). They have small cores(9 microns in diameter) and transmit infra-red light from laser.
•Multi-mode fibers – used to transmit many signals per fiber (used in computer networks). They have larger cores(62.5 microns in diameter) and transmit infra-red light from LED.
« Last Edit: November 07, 2018, 01:37:27 PM by MysteRy »
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