Configurable spatio-temporal properties in a photon-pair source based on spontaneous four wave mixing with multiple transverse modes

摘要

We present an experimental and theoretical study of photon pairs generated byspontaneous four wave mixing (SFWM), based on birefringent phasematching, in afiber which supports more than one transverse mode. We present SFWM spectra,obtained through single-channel and coincidence photon counting, which exhibitmultiple peaks shown here to be the result of multiple SFWM processesassociated with different combinations of transverse modes for the pump,signal, and idler waves.