[2] Ho M C, Uesaka K, Marhic M, et al. 200 nm bandwidth fiber optical amplifier combining parametric and Raman gain [J]. IEEE Lightwave Technol., 2001, 19(7): 977-981.
[3] Zhang W, Wang C G, Shu J W, et al. Design of fiber-optical parametric amplifiers by genetic algorithm [J]. IEEE Photon Technol. Lett., 2004, 16(7): 1652-1654.
[4] Wong K K Y, Shimizu K, Uesaka K, et al. Continuous-wave fiber optical parametric amplifier with 60 dB gain using a novel two-segment design [J]. IEEE Photon. Technol. Lett., 2003, 15(12): 1707-1709.
[5] Wong K K Y, Marhic M E, Kalogerakis G, et al. Fiber optical parametric amplifier and wavelength converter with record 360 nm gain bandwidth and 50 dB signal gain [C]. Conference of Lasers and Electro-Optics, 2003.
[6] Kim J, Boyroz O, Lim J H, et al. Gain enhancement in cascaded fiber parametric amplifier with quasi-phase matching: theory and experiment [J]. IEEE Lightwave Techonol., 2001, 19(2): 247-251.
[7] Mckinstric C J, Radic S, Chraplyvy A R. Parametric amplifiers driven by two pump waves [J]. IEEE J. Sel. Top. Quantum Electon., 2002, 8(3): 538-547.
[8] Radic S, Mckinstric C J. Two-pump fiber parametric amplifiers [J]. Opt. Fiber Technol., 2003, 9(1): 7-23.
[9] Wong K K Y, Marhic M E, Kalogerakis G, et al. Polarization-independent two-pump fiber optical parametric amplifier [J]. IEEE Photon. Technol. Lett., 2002, 14(7): 911-913.
[10] Gao M Y, Jiang C, Hu W S, et al. Optimized design of two-pump fiber optical parametric amplifier with two-section nonlinear fibers using genetic algorithm [J]. Optics Express, 2004, 12(23): 5603-5613.