Increased polarization-entangled photon flux via thinner crystals (4 pages)

Letizia Sciscione

Sauge, Marcin Świłło, GUILHERME BARRETO XAVIER +2 more

C. Zhang

P. S. K. Lee, Martin P. van Exter, J.P. Woerdraan

We demonstrate experimentally that the production of polarization-entangled photons via type-II spontaneous parametric down-conversion is higher for thin nonlinear crystals than for thicker ones, basically because thinner crystals generate a broader spectrum.

Toshiki Kobayashi, Atsushi Yabushita

P. S. K. Lee, Martin P. van Exter, J. P. Woerdman

We analyze the scaling laws that govern the production of polarization-entangled photons via type-II spontaneous parametric down-conversion (SPDC). We demonstrate experimentally that thin nonlinear crystals can generate a higher number of entangled photons than thicker crystals, basically because they generate a broader spectrum.