Spatial separation of collinearly emitted broadband frequency-correlated photon pairs
Yuki Kamei, Bo Cao, Ryo Okamoto, Shigeki Takeuchi · Physical Review A · 2023
The authors demonstrate the efficient separation of broadband frequency-entangled photon pairs generated in the same spatial and polarization mode. Entangled photons with a broad bandwidth of 90 nm are successfully separated using time-reversed Hong-Ou-Mandel interference.