Integrated photon pair source for SOI-based quantum optics

摘要

This study demonstrates photon pair generation (PPG) through third order nonlinear interaction between a silicon straight waveguide (Si-w) and a pulsed beam. The experiment is performed in a continuous regime, to avoid any synchronization between detectors and laser and to allow for much cheaper laser sources. Results show that the flux of generated pairs and the signal-to-noise ratio are limited by the outcoupling loss and detector inefficiency.