Polarization Entangled Photon
Pair Source

High rate and high heralding Sagnac-interferometer source of polarization-entangled photon pairs, based on spontaneous parametric down-conversion (SPDC) within a periodically poled Lithium Niobate crystal (type 0). Access to all mechanical and electrical parameters, ideal platform for Research & Development teams.
Optical Specifications
Type of entanglement
polarization-entangled photon pairs
Visibility in polarization
> 98% (average of HV and DA bases)
Central wavelength
Spectral width
> 30nm (covering 32 × 100GHz DWDM channels) optional up to 60nm
(upon request)
Internal pair generation rate
3×10⁶ pairs/s/mW/nm,
typically 4×10⁶ pairs/s/mW/nm
Internal pair generation rate
> 3×10¹⁰ pairs/s (full spectrum @ max power)
Heralded source efficiency
30%, typically 40% (before DWDM)
Heralded pair rate
> 1×10⁸ pairs/s/nm (before DWDM)
General Specifications
Entangled photon pair output
32 x FC/PC connectors (female)
(other solutions upon request)
Power supply
230V ± 5%; 50Hz
Power consumption
< 100W

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