The Quantum Optics Laboratory is at the frontier in the study of the fundamental properties and applications of the ligth in the quantum regime, particularly focusing on the Quantum Key Distribution. This family of protocols allows two users to share a common and secure random sequenze of bits, i.e. a secure cryptographic key.

The Laboratory has equiped with a souce of photon-pairs in polarization/frequency entangled state, generated by the interation of
the light from a laser with a non-linear crystal. The photons are manipulated with beam-splitter, retardation wave-plates and optical-fibers for the study of new protocols in Quantum Informa tion and Quantum Communication the laboratory is involveded on.