Adiabatic four-wave mixing frequency conversion

Eyal Bahar, Xiaoyue Ding, Asaf Dahan, Haim Suchowski, Jeffrey Moses

Research output: Contribution to journalArticlepeer-review

Abstract

We introduce the concept of adiabatic four-wave mixing (AFMW) frequency conversion in cubic nonlinear media through an analogy to dynamics in quantum two-level systems. Rapid adiabatic passage in four-wave mixing enables coherent near-100% photon number down-conversion or up-conversion over a bandwidth much larger than ordinary phase-matching bandwidths, overcoming the normal efficiency-bandwidth trade-off. We develop numerical methods to simulate AFWM pulse propagation in silicon photonics and fiber platforms as examples. First, we show that with a longitudinally varying silicon waveguide structure, a bandwidth of 70 nm centered at 1820 nm can be generated with 90% photon number conversion. Second, we predict the broadband generation of nanojoule energy, 4.2-5.2 µm mid-infrared light in a short, linearly tapered fluoride step-index fiber. We expect the AFWM concept to be broadly applicable to cubic nonlinear platforms, for applications as diverse as bright ultrafast light pulse generation, sensing, and conversion between telecommunications bands.

Original languageEnglish
Pages (from-to)25582-25601
Number of pages20
JournalOptics Express
Volume26
Issue number20
DOIs
StatePublished - 1 Oct 2018

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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