Complete conversion between one and two photons in nonlinear waveguides: theory of dispersion engineering

Journal article

High-efficiency photon-pair production is a long-sought-after goal for many optical quantum technologies, and coherent photon conversion (CPC) processes are promising candidates for achieving this. We show theoretically how to control coherent conversion between a narrow-band pump photon and broadband photon pairs in nonlinear optical waveguides by tailoring frequency dispersion for broadband quantum frequency mixing. We reveal that complete deterministic conversion as well as pump-photon revival can be achieved at a finite propagation distance. We also find that high conversion efficiencies can be realised robustly over long propagation distances. These results demonstrate that dispersion engineering is a promising way to tune and optimise the CPC process

Authors: Solntsev, AS; Batalov, SV; Langford, NK; Sukhorukov, AA

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IOP Publishing
• Journal: New Journal of Physics
• Volume: 24
• Issue: 6
• Pages: 065002-065002
• Publication date: 2022-05-25
• DOI: 10.1088/1367-2630/ac7348
• EISSN: 1367-2630
• ISSN: 1367-2630
• Language: English
• Keywords: Quantum optics; Optics; Optoelectronics; Quantum mechanics; Dispersion (optics); Electrical engineering; Nonlinear optics; Physics; Frequency conversion; Quantum; Photon; Mixing (physics); Broadband; Nonlinear system; Four-wave mixing