Advantages and disadvantages of raman amplifier

Raman amplifier is also a relatively mature optical amplifier in the different amplifier system. In this  amplifier, the optical signal can be achieved by using stimulated Raman scattering, stimulated Brillouin scattering or stimulated for photon mixing giving parametric gain by injecting a high power laser beam into an optical fiber. Here this article gives the advantages and disadvantages of the Raman amplifier to know more details about the Raman amplifier. 

Advantages of Raman amplifier :
  • Compatible with installed SM fiber
  • Variable wavelength amplification possible
  • A very broadband operation may be possible
  • Can result in lower average power over a span, so it good for lower crosstalk
  • Can be used extends  EDFAs
  • Flexible gain wavelength
  • Low noise
  • Simple structure
  • The non-linear effect can be reduced
Disadvantages of Raman amplifier :
  • High pump power require
  • Sophisticated gain control needed
  • Noise is also an issue
  • Low efficiency
  • High cost

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