Tamás Sarkadi

Increasing the correlation level of polarization entangled photon pairs generated by type-II SPDC in BBO

2020 · Frontiers in Optics / Laser Science

Entangled photon sources introduce phase shift between polarization states. Exceeding coherence length, coincidence rate drops for certain bases. Correlation is restored by phase compensation. Applying anisotropic retarders coincidence rate doubles.