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Home › Forums › GENERAL › difference between using optical amplifier and EDFA › Reply To: difference between using optical amplifier and EDFA

May 2, 2016 at 10:21 am #38742
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Rajguru M. Mohan
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Hi,
I want to point out about Disadvantages of SOA
The performance of SOA is still not comparable with the EDFA. The SOA has higher noise, lower gain, moderate polarization dependence and high nonlinearity with fast transient time.
So, we have to use EDFA and this is because of its following advantages:
EDFA has high pump power utilization (>50%)
Directly and simultaneously amplify a wide wavelength band (>80nm) in the 1550nm region, with a relatively flat gain
Flatness can be improved by gain-flattening optical filters
Gain in excess of 50 dB
Low noise figure suitable for long haul applications.

Thanks,

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