Review of studies about quantum communication and foundations of quantum mechanics at IENGF

In this proceeding I review the main experimental results obtained at IENGF (Turin, Italy) by using a source of entangled photons realized superposing, by means of an optical condenser, type I PDC produced in two crystals. More in details, after having described how this source is built, I will report on a Bell inequalities test obtained with it. Then I describe a recent innovative double slit experiment realized with a similar scheme. Finally, I hint about future developments of this activity at IENGF and in particular about a quantum cryptographic scheme in d=4.