[1] [1] Arlee V. Smith. Group-velocity matched three wave mixing in birefringent crystals [J]. Opt. Lett., 2001, 26(10):719～721

[2] [2] P. Kumbhakar, T. Kobayashi. Utrabroad-band phase matching in two recently grown nonlinear optical crystals for the generation of tunable utrafast laser radiation by typeⅠ noncollinear optical parametric amplification [J]. J. Appl. Phys., 2003, 94(3):1329～1338

[3] [3] Akira Shirakawa, Takayoshi Kobayashi. Noncollinear phase matched femtosecond optical parametric amplification with a 2000/cm bandwidth [J]. Appl. Phys. Lett., 1998, 72(2):147～149

[4] [4] Baozhen Zhao, Xiaoyan Liang, Yuxin Leng et al.. Investigation of near-collinear degenerated quasi-phase matching optical parametric amplication using PPKTP crystal [J]. Chin. Opt. Lett., 2005, 3(3):168～171

[5] [5] Baigang Zhang, Jianquan Yao, Hao Zhang et al.. Angle-tuned signal-resonated optical parametric oscillator based on periodically poled lithium niobate [J]. Chin. Opt. Lett., 2003, 1(6):346～349

[6] [6] Weiquan Zhang. Femtosecond optical parametric generation of noncollinear phase match for biaxial crystal [J]. Appl. Opt., 2003, 42(27):5596～5601

[7] [7] Weiquan Zhang. Optimum operation of femtosecond parametric oscillation of noncollinear phase match in KTP [J]. Appl. Opt., 2005, 44(12):2431～2437

[8] [8] J. Hellstrom, V. Pasiskevicius, H. Karlsson et al.. High-power optical parametric oscillation in large-aperture periodically poled KiTOPO4 [J]. Opt. Lett., 2000, 25(3):174～176

[9] [9] V. Smilgeviius, A. Stabinis, A. Piskarskas. Noncollinear optical parametric oscillator with periodically poled KTP [J]. Opt. Commun., 2000, 173:365～369

[10] [10] Weiquan Zhang. Tunable midwave infrared generation with optical parametric oscillators and difference frequency generation [J]. Opt. Commun., 2005, 252:179～187

[11] [11] G.Veitas, R. Danielius. Generation of narrow bandwidth tunable picosecond pulses by difference frequency mixing of stretched pulses [J]. J. Opt. Soc. Am. B, 1999, 16(9):1561～1565

[12] [12] L.Hongjun, Z. Wei, C. Guofu. Investigation of spectral bandwidth of optical parametric amplification [J]. Appl. Phys. B, 2004, 79(5):569～576

[13] [13] Weiquan Zhang. Optical l parametric generation for biaxial crystal [J]. Opt. Commun., 1994, 105(3-4):226～232

[14] [14] Kiyoshi Kato, Eiko Takaoka. Sellmeier and thermo-optic dispersion formulas for KTP [J]. Appl. Opt., 2002, 41(24):5040～5044

[15] [15] Weiquan Zhang. Femtosecond second and third harmonic light generation in biaxial crystal [J]. Optik, 1997, 104(3):87～91