[1] Lacey J P R, Summerfield M A, Madden S J. Tunability of polarization-insensitive wavelength converters based on four-wave mixing in semiconductor optical amplifiers. IEEE Photon. Technol. Lett., 1998, 16(12):2419~2427
[2] Contestabile G, Martelli F, Mecozzi A et al.. Efficiency flattening and equalization of frequency up-and down-conversion using four-wave mixing in semiconductor optical amplifiers. IEEE Photon. Technol. Lett., 1998, 10(10):1398~1401
[3] Morga T J, Tucker R S, Lacey J P R. All-optical wavelength translation over 80 nm at 2.5 Gb/s using four-wave Mixing in a semiconductor optical amplifier. IEEE Photon. Technol. Lett., 1999, 11(8):982~984
[4] Zhou Jianhui, Park N, Dawson J W et al.. Efficiency of broadband four-wave mixing wavelength conversion using semiconductor traveling wave amplifiers. IEEE Photon. Technol. Lett., 1994, 6(1):50~52