Spatiotemporal Description of Non-linear Interference Based on Cascaded Spontaneous Parametric Down-Conversion.
Carlos Sevilla-Gutiérrez, Purujit Singh Chauhan, Fabian Steinlechner · Quantum 2.0 Conference and Exhibition · 2024
We model and experimentally demonstrate the full spatiospectral non-linear interference of cascaded SPDC sources using a spectrally dependent Laguerre-Gaussian basis and an arbitrary mode dependent transformation performed by the optical system.