The most popular material for long-haul telecommunication application widely used in silica doped with erbium, which is known as an erbium-doped fiber amplifier. So we will check the advantages and disadvantages of EDFA to know more about EDFA.
Advantages of EDFA :
Advantages of EDFA :
- Gain is an excess of up to 40 to 50 dB
- Low noise 3-5 dB, it is suitable for long-haul application
- High pump power utilization
- Good gain stability
- The high energy conversion efficiency
- High gain with little crosstalk
- This amplifier is fully compatible with the rest of the fiber optic transmission link
- Flatness can be improved gain flattening optical filter
- Amplify wide wavelength band in the range of around 1530 nm to 1560 nm region, with a relatively flat
Disadvantages of EDFA :
- Size of EDFA is large
- Fixed gain range
- Gain up flatness
- Optical surge problem
- High pump power consumption
- It cannot be integrated with other semiconductor devices
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