Mid-infrared Spectrally Pure Single-Photon States Generation from 22 Nonlinear Optical Crystals

Table 2

Three kinds of GVM conditions for 10 uniaxial BPM crystals. is the GVM wavelength for the pump (signal, idler). is the phase-matching angle, and is the effective nonlinear coefficient. The Sellmeier equations are obtained from references [34, 35]. Most of the values can be obtained from the SNLO software package, developed by AS-Photonics, LLC [57]. value for CMTC is not available from SNLO, we have calculated using the method in the Appendix of reference [52] and considering Miller’s rule [58]. The value for THI is unknown.

Name	(purity0.97)	(purity0.97)	(purity0.82)
CMTC	= 649 nm,  = 1298 nm	= 1156 nm,  = 2312 nm	= 829 nm,  = 1658 nm
	= 41.2°,  =  4.46 pm/V	= 43.6°,  =  3.63 pm/V	= 38.2°,  =  4.13 pm/V
	= 2841 nm,  = 5682 nm	= 4822 nm,  = 9644 nm	= 3705 nm,  = 7410 nm
	= 29.3°,  = unknown	= 29.3°,  = unknown	= 27.2°,  = unknown
	= 835 nm,  = 1670 nm	= 1460 nm,  = 2920 nm	= 1088 nm,  = 2176 nm
	= 29.3°,  = 0.09 pm/V	= 29.7°,  = 0.09 pm/V	= 27.2°,  = 0.09 pm/V
AAS	= 2151 nm,  = 4302 nm	= 3617 nm,  = 7234 nm	= 2793 nm,  = 5586 nm
	= 22.3°,  = 0.16 pm/V	= 22.3°,  = 0.15 pm/V	= 20.7°,  = 0.16 pm/V
HGS	= 1704 nm,  = 3408 nm	= 2819 nm,  = 5638 nm	= 2206 nm,  = 4412 nm
	= 60.1°,  = 0.29 pm/V	= 59.8°,  = 0.29 pm/V	= 54.2°,  = 0.32 pm/V
CGA	= 3692 nm,  = 7384 nm	= 5825 nm,  = 11650 nm	= 4690 nm,  = 9380 nm
	= 54.6°,  = 0.02 pm/V	= 53.9°,  = 0.02 pm/V	= 49.8°,  = 0.02 pm/V
TAS	= 3620 nm,  = 7240 nm	= 5535 nm,  = 11070 nm	= 4570 nm,  = 9140 nm
	= 27.5°,  = 0.24 pm/V	= 27.0°,  = 0.23 pm/V	= 25.6°,  = 0.24 pm/V
AGS	= 1688 nm,  = 3376 nm	= 2845 nm,  = 5690 nm	= 2187 nm,  = 4374 nm
	= 53.7°,  = 0.14 pm/V	= 53.9°,  = 0.14 pm/V	= 48.9°,  = 0.15 pm/V
AGSe	= 2457 nm,  = 4914 nm	= 4079 nm,  = 8158 nm	= 3136 nm,  = 6272 nm
	= 79.9°,  = 0.11 pm/V	= 81.9°,  = 0.13 pm/V	= 67.2°,  = 0.25 pm/V
GaSe	= 2189 nm,  = 4378 nm	= 3657 nm,  = 7314 nm	= 2833 nm,  = 5666 nm
	= 16.1°,  = 0.51 pm/V	= 16.1°,  = 0.49 pm/V	= 15.0°,  = 0.51 pm/V