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EDFA (Erbium Doped Fiber Amplifier) - Coggle Diagram
EDFA (Erbium Doped Fiber Amplifier)
Definition
Erbium Doped Fiber Amplifier
Optical amplifier
Amplifies light directly
Working Principle
Pumping
Population inversion
Stimulated emission
Pumping
980 nm
High efficiency
Low noise
1480 nm
High power
807 nm
Low efficiency
ESA effect
Components
Pump laser
Er-doped fiber
WDM coupler
Isolator
Types
Pre-amplifier
Booster amplifier
In-line amplifier
Effects
Signal gain
ASE noise
Advantages
High gain
Low noise
No O-E-O conversion
Applications
Fiber optic communication
WDM systems
Submarine cables