FIBRE OPTICS
MODULE 5
, Introduction
• Conventional methods of long distance communication
• Micro waves or radio waves (f≈106Hz)
• But the information carrying capacity of a carrier wave depends on its freque
• Larger the frequency, greater the information carrying capacity.
• Light waves (f≈1012Hz)
• Corning Labs in USA
• Loss was 20db/Km
• Loss≈.2db/Km
, Principle of Optical Fiber(Total Internal Reflection)
n2
A
n1
θ1=θc
Applying Snell’s law at Point A
MODULE 5
, Introduction
• Conventional methods of long distance communication
• Micro waves or radio waves (f≈106Hz)
• But the information carrying capacity of a carrier wave depends on its freque
• Larger the frequency, greater the information carrying capacity.
• Light waves (f≈1012Hz)
• Corning Labs in USA
• Loss was 20db/Km
• Loss≈.2db/Km
, Principle of Optical Fiber(Total Internal Reflection)
n2
A
n1
θ1=θc
Applying Snell’s law at Point A
