We present a novel method for desiging multiwavelength pumped fiber Raman amplifiers with optimal gain-flatness and gain-bandwidth performance. We show that by solving the inverse amplifier design problem, relative gain flatness well below 1% can be achieved over bandwidths of up to 12 THz without any gain equalization devices. This constitutes a substantial improvement in gain flatness compared to the existing wide-band optical fiber amplifiers.
© 2002 IEEE
Victor E. Perlin and Herbert G. Winful, "Optimal Design of Flat-Gain Wide-Band Fiber Raman Amplifiers," J. Lightwave Technol. 20, 250- (2002)