[1] S. J. B. Yoo. Wavelength conversion technologies for WDM network applications[J]. J. Lightwave Technol., 1996, 14(6) : 955~966
[2] A. D. Ellis, A. E. Kelly, D. Nesset et al.. Error free 100 Gbit/s wavelength conversion using grating assisted crossgain modulation in 2 mm long semiconductor amplifier[J]. Electron. Lett., 1998, 34(20) : 1958~1959
[3] C. Joergensen, S. L. Danielsen, T. Durhuus et al.. Wavelength conversion by optimized monolithic integrated MachZehnder interferometer[J]. IEEE Photon. Technol. Lett., 1996, 8(4) : 521~523
[4] Sune Hjfeldt, Svend Bischoff, Jesper Mrk. Alloptical wavelength conversion and signal regeneration using an electroabsorption modulator[J]. J. Lightwave Technol., 2000, 18(8) : 1121~1127
[9] M. H. Chou, J. Hauden, M. A. Arbore et al.. 1.5μmband wavelength conversion based on differencefrequency generation in LiNbO3 waveguides with integrated coupling structures[J]. Opt. Lett., 1998, 23(13) : 1004~1006
[10] B. Zhou, C. Q. Xu, B. Chen. Comparison of differencefrequency generation and cascaded χ(2) based wavelength conversions in LiNbO3 quasiphasematched waveguides[J]. J. Opt. Soc. Am. B, 2003, 20(5): 846~852
[11] M. H. Chou, I. Brener, M. M. Fejer et al.. 1.5μmband wavelength conversion based on cascaded secondorder nonlinearity in LiNbO3 waveguides[J]. IEEE Photon. Technol. Lett., 1999, 11(6): 653~655
[12] J. Q. Sun, W. Liu, J. Tian et al.. Multichannel wavelength conversion exploiting cascaded secondorder nonlinearity in LiNbO3 waveguides[J]. IEEE Photon. Technol. Lett., 2003, 15(12) : 1743~1745
[13] J. Wang, J. Sun, J. Li et al.. Singletodual channel wavelength conversion of picosecond pulses using PPLNbased doublering fibre laser[J]. Electron. Lett., 2006, 42(4): 236~237
[14] B. Chen, C. Q. Xu. Analysis of novel cascaded χ(2) (SFG+DFG) wavelength conversions in quasiphasematched waveguides[J]. IEEE J. Quant. Electron., 2004, 40(3): 256~261
[15] S. Yu, W. Gu. A tunable wavelength conversion and wavelength add/drop scheme based on cascaded secondorder nonlinearity with doublepass configuration[J]. IEEE J. Quant. Electron., 2005, 41(7): 1007~1012
[16] Y. L. Lee, B. A. Yu, C. Jung et al.. Alloptical wavelength conversion and tuning by the cascaded sum and difference frequency generation (cSFG/DFG) in a temperature gradient controlled Ti∶PPLN channel waveguide[J]. Opt. Express, 2005, 13(8): 2988~2993
[17] J. Wang, J. Q. Sun, C. H. Luo et al.. Experimental demonstration of wavelength conversion between pspulses based on cascaded sum and difference frequency generation (SFG+DFG) in LiNbO3 waveguides[J]. Opt. Express, 2005, 13(19): 7405~7414
[18] Y. Min, J. Lee, Y. Lee et al.. Tunable alloptical wavelength conversion of 5 ps pulses by cascaded sum and difference frequency generation (cSFG/DFG) in a Ti∶PPLN waveguide[C]. In: Tech. Dig. OFC′03, Atlanta, GA/USA, 2003, 2: 767~768