Parasitic photon-pair suppression via photonic stop-band engineering

L. G. Helt*, Agata M. Branczyk, Marco Liscidini, M. J. Steel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We calculate that an appropriate modification of the field associated with only one of the photons of a photon pair can suppress generation of the pair entirely. From this general result, we develop a method for suppressing the generation of undesired photon pairs utilizing photonic stop bands. For a third-order nonlinear optical source of frequency-degenerate photons, we calculate the modified frequency spectrum (joint spectral intensity) and show a significant increase in a standard metric, the coincidence to accidental ratio. These results open a new avenue for photon-pair frequency correlation engineering.

Original languageEnglish
Article number073603
Pages (from-to)1-5
Number of pages5
JournalPhysical Review Letters
Issue number7
Publication statusPublished - 2017


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