[1] Louisell W H, Yariv A, Siegman A E. Quantum fluctuations and noise in parametric processes. I. [J].Phys. Rev., 1961, 124(6): 1646-1654.
[2] Klyshko D N. Utilization of vacuum flucuations as an optical brightness standard [J].Sov. J. Quantum Electron., 1977, 7(5): 591-595.
[3] Harris S E, Oshman M K, Byer R L. Observation of tunable optical parametric fluorescence [J].Phys. Rev. Lett., 1967, 18(18): 732-734.
[4] Klyshko D N. Use of two-photon light for absolute calibration of photoelectric detectors [J].Sov. J. Quantum Electron, 1980, 10(9): 1112-1116.
[5] Penin A N, Sergienko A V. Absolute standardless calibration of photodetectors based on quantum two-photon fields [J].Appl. Opt., 1991, 30(29): 3582-3588.
[6] Ghazi-Bellouati A, Razeta A, Bastie J,et al. Detector calibration at INM using a correlated photons source [J]. Eur. Phys. J. Appl. Phys., 2006, 35: 211-216.
[7] Brida G, Castelletto S, Novro C. Measurement of quantum efficiency of photodetectors by parametric fluorescence [J].Metrologia, 1998, 35(4):379-401.
[8] Cheung J Y, Chunnilall C J, Thomas P J,et al. Photon-counting measurement challenges [C]. Proc. SPIE, 2007, 6583: 65830G1-65830G12.
[9] Migdall A L, Datla R U, Sergienko A,et al. Absolute detector quantum-efficiency measurements using correlated photons [J]. Metrologia, 1995, 32: 479-483.
[10] Polyakov S V, Migdalla A L. High accuracy verification of a correlated-photon- based method for determining photon-countingdetection efficiency [J].Opt. Exp., 2007, 15(4): 1390-1407.
[11] Feng Yu, Zheng Xiaobing, Li Jianjun,et al. Research in absolute calibration of single photon detectors by means of correlated photons [J]. Chin. Opt. Lett., 2000, 4(6): 315-317.
[12] Li Jianjun, Zheng Xiaobing, Lu Yunjun,et al. Quantum efficiency calibration of opto-electronic detector by means of correlated photons method [J]. Chin. Opt. Lett., 2008, (7): 472-475.
[13] Wu Ling’an, Chen Xihao, Zhai Yanhua,et al. Absolute self-calibration of single-photon detectors with cw and pulsed spontaneous parametric down-conversion [J]. Proc. SPIE, 2006, 6305: 630505-7.
[14] Lu S L, Liu B, Sun B Q,et al. Absolute measurement of detector quantum efficiency using optical parametric down-conversion pumped by femtosecond laser pulses [J]. Meas. Sci. Technol., 2002, 13: 186-189.
[15] Lü Liang, Zhang Yinchao, Lin Yandong. Research on absolute calibration of photodetector quantum-efficiency using entangled photons [J].Acta Optica Sinica, 2012, 32(1): 119-125(in Chinese).
[17] Hong C K, Mandel L. Theory of parametric frequency down conversion of light [J].Phys. Rev. A, 1985, 31(4): 2409-2418.
[18] Brida G, Genovese M, Novero C. On the measurement of photon flux in parametric down-conversion [J].Eur. Phys. J. D., 2000, 8(2): 273-275.
