In this paper, the fourfold parametric enhancement over Raman gain of the total optical fiber-amplifier gain is analyzed. Such fiber-amplifier gain may be obtained with a relatively flat profile over a bandwidth in excess of 70 nm by using a microstructure or photonic crystal fiber with two zero-dispersion wavelengths. Optimal fiber-amplifier gain enhancement occurs whenever the pump wavelength is slightly shorter than the second zero-dispersion wavelength of a microstructure optical fiber.
© 2006 IEEE
S. Wabnitz, "Broadband Parametric Amplification in Photonic Crystal Fibers With Two Zero-Dispersion Wavelengths," J. Lightwave Technol. 24, 1732- (2006)