[2] Yao Q, Fahlen S. Calculations of optimum phase match parameters for the biaxial crystal KTiOPO4. J. Appl. Phys., 1984, 55(1):65～68

[3] Yao Jianquan, Sheng Weidong, Shi Weiqiang. Accurate calculation of the optimum phase-matching parameters in three-wave interactions with biaxial nonlinear-optical crystals. J. Opt. Soc. Am. (B), 1992, 9(6):891～902

[4] Skeldon M D, Craxton R S, Kessler T J et al..Efficient harmonic generation with a broad-band laser. IEEE J. Quant. Electron., 1992, QE-28(5):1389～1399

[5] Richman B A, Bisson S E, Trebino r et al.. Achromatic phase matching for tunable second-harmonic generation by use of a grism. Opt. Lett., 1997, 22(16):1223～1225