Abstract We demonstrate a new generation mechanism for polarisation- and colour-entangled photon pairs. In our approach we tailor the phase-matching of a periodically poled KTP crystal such that two downconversion processes take place simultaneously. Relying on this effect. our source emits entangled bipartite photon states. https://www.sukrensi.com/flash-offer-ILOOTPAPERIE-Washi-Tape-best-find/