Flat amplitude, 798-channel Raman assisted Brillouin/Rayleigh multi-wavelength comb generator

We demonstrate the generation of 798 lines, flat amplitude multi-wavelength Brillouin/Rayleigh comb by employing dispersion compensating fiber both for efficient Brillouin Stokes generation and high Raman amplification. Multi-wavelength output of 798 Brillouin Stokes lines with average channel power of -17 dBm has been obtained with excellent flatness.