Bi-photon propagation control with optimized wavefront by means of Adaptive Optics

Autor: Minozzi, M., Bonora, S., Sergienko, A. V., Vallone, G., Villoresi, P.
Rok vydání: 2012
Předmět:
Zdroj: Optics Letters 38, 489 (2013)
Druh dokumentu: Working Paper
DOI: 10.1364/OL.38.000489
Popis: We present an efficient method to control the spatial modes of entangled photons produced through SPDC process. Bi-photon beam propagation is controlled by a deformable mirror, that shapes a 404nm CW diode laser pump interacting with a nonlinear BBO type-I crystal. Thanks to adaptive optical system, the propagation of 808nm SPDC light produced is optimized over a distance of 2m. The whole system optimization is carried out by a feedback between deformable mirror action and entangled photon coincidence counts. We also demonstrated the improvement of the two-photon coupling into single mode fibers.
Databáze: arXiv