POLARIZATION-ENTANGLED QUANTUM KEY DISTRIBUTION OVER TELECOMMUNICATION FIBRES

Abstract

This thesis summarizes my studies on various technical aspects of entanglement-based quantum key distribution at telecommunication wavelengths, which involves generation and detection of polarization entangled photons at telecom O-band (1310 nm), as well as techniques for distributing entangled photons over long telecom fibers. These efforts eventually lead to an implementation of polarization-entangled QKD over a deployed fiber, demonstrating that QKD can be integrated into existing telecommunication fibers using polarization-entangled photons.