Refine
Has Fulltext
- yes (2)
Is part of the Bibliography
- yes (2)
Document Type
- Journal article (2) (remove)
Language
- English (2)
Keywords
- Bragg-reflection waveguide (1)
- CHIP (1)
- Entanglement (1)
- Information (1)
- PUMP (1)
- Parametric down-conversion (1)
- group refractive index (1)
- materials for optics (1)
- nanoscience and technology (1)
- optics and photonics (1)
Institute
EU-Project number / Contract (GA) number
- 257531 (1)
We investigate the dispersion properties of ridge Bragg-reflection waveguides to deduce their phasematching characteristics. These are crucial for exploiting them as sources of parametric down-conversion (PDC). In order to estimate the phasematching bandwidth we first determine the group refractive indices of the interacting modes via Fabry-Perot experiments in two distant wavelength regions. Second, by measuring the spectra of the emitted PDC photons, we gain access to their group index dispersion. Our results offer a simple approach for determining the PDC process parameters in the spectral domain, and provide important feedback for designing such sources, especially in the broadband case.