Temporal distinguishability in Hong-Ou-Mandel interference for harnessing high-dimensional frequency entanglement

Funding

Financial support from the Austrian Research Promotion Agency (FFG) Projects Agentur fur Luft-und Raumfahrt (FFG-ALR contract 6238191 and 866025), the European Space Agency (ESA contract 4000112591/14/NL/US) as well as the Austrian Academy of Sciences is gratefully acknowledged. F.S. acknowledges financial support from Fraunhofer Internal Programs under Grant No. Attract 066-604178. Y.C. and L.C. acknowledge financial support from the National Natural Science Foundation of China (12034016, 12004318, 61975169), the Fundamental Research Funds for the Central Universities at Xiamen University (20720190057), the Natural Science Foundation of Fujian Province of China (2020J05004), the Fundamental Research Funds for the Central Universities at XMU (20720200074).