S-Fifteen Instruments Correlated Photon-Pair Source uses spontaneous parametric down-conversion (SPDC) to create a pair of polarization entangled photons at 1320nm. The unit outputs > 500kHz photon pairs with a high visibility of >97% and heralding ratio of >0.25.

• Bright polarization-entangled photon pairs source
• Pair spectrum centered at 1320 nm
• Spectral width of 100 nm
• High polarization-entanglement visibility
• High brightness
• Minimum dispersion in G652/G657 fibers

Applications: Quantum key distribution, quantum metrology, absorption spectroscopy, 2-photon interference, subshot-
noise imaging, random number generation, clock synchronization, ghost imaging, entanglement swapping