[1] Hiroshima T, Ishizaka S. Local and nonlocal properties of Werner states[J].Phys. Rev. A, 2000, 62(4): 044302.
[2] Shor P W, Smolin J A, Terhal B M. Nonadditivity of bipartite distillable entanglement follows from a conjecture on bound entangled Werner states[J].Phys. Rev. Lett., 2001, 86(12): 2681-2684.
[3] Ishizaka S, Hiroshima T. Maximally entangled mixed states under nonlocal unitary operations in two qubits[J].Phys. Rev. A, 2000, 62(2): 022310.
[4] Xu Haibin. Researches into quasi-phase-matching nonlinear optical frequency conversion[J].Journal of Huzhou Teachers College, 2005, 27(2): 36-39(in Chinese).
[5] Tanzilli L S, De Riedmatten H, Tittle W,et al. Highly efficient photon-pair souce using a periodically poled lithium niobate waveguide[J]. Electron. Lett., 2001, 37: 26-28.
[8] Xiao K, Zhang J, Chen B Q,et al. Three-wavelength generation from cascaded wavelength conversion in monolithic periodically poled lithium niobate[J]. Chin. Phys. B, 2015, 24(1): 014209.
[9] Bake S Y, Kim Y H. Spectral properties of entangled photon pairs generated via frequency-degenerate type-I spontaneous parametric down-conversion[J].Phys. Rev. A, 2008, 77(4): 1912-1917.
[10] Bake S Y, Kim Y H. Spectral properties of entangled photon generated via type-I frequency-nondegenerate spontaneous parametric down-conversion[J].Phys. Rev. A, 2009, 80(3): 2962-2964.
[11] Lu Zonggui, Liu Hongjun, Jing Feng,et al. Theoretical analysis of spectral properties of parametric fluorescence via spontaneous parametric down-conversion[J]. Acta Physics Sinica, 2009, 58(7): 4689-4696(in Chinese).
[12] Li Baihong, Wang Doudou, Zhang Tao,et al. Quantum properties of entangled biphtotons generated via frequency-nondegenerate spontaneous parametric down-conversion[J]. Acta Physics Sinica, 2015, 44(12): 12270001(in Chinese).
[13] Hong C K, Mandel L. Theory of parametric frequency down conversion of light[J]. 1985, 31(4): 2409-2418.
[14] Myer L E, Eckardt R C, Fejer M M,et al. Quasi-phase-matched optical parametric oscillators in bulk periodically poled LiNbO3[J]. J. Opt. Soc. Am. B, 1995, 12(11): 2102-2116.
[15] Myer L E. Review of quasi-phase-matching and periodically poled lithium niobate[C]//Aero space and Electronics Conference, 1996, NAECON, Proceeding of the IEEE 1996 National, 1996, 2: 733-739.
[16] Jaskorzynska B, Arvidsson G, Laurell F. Periodic structures for phase matching in second harmonic generation in titanium lithium niobate waveguides[C].Proce. SPIE, 1986, 651: 221-228.
[17] Prabhakar S, Reddy S G, Aadhi A,et al. Spatial distribution of spontaneous parametric down-conversion photons for higher order optical vortices[J]. Opt. Commun., 2014, 326: 64-69.