Abstract
We report on the study of the third-order nonlinear optical interactions in InxGa1-xAsyP1-y/InP strip-loaded waveguides. The material composition and waveguide structures were optimized for enhanced nonlinear optical interactions. We performed self-phase modulation, four-wave mixing and nonlinear absorption measurements at the pump wavelength 1568 nm in our waveguides. The nonlinear phase shift of up to 2.5π has been observed in self-phase modulation experiments. The measured value of the two-photon absorption coefficient α2 was 19 cm/GW. The four-wave mixing conversion range, representing the wavelength difference between maximally separated signal and idler spectral components, was observed to be 45 nm. Our results indicate that InGaAsP has a high potential as a material platform for nonlinear photonic devices, provided that the operation wavelength range outside the two-photon absorption window is selected.
Original language | English |
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Pages (from-to) | 524-530 |
Number of pages | 7 |
Journal | Optical Materials |
Volume | 84 |
DOIs | |
Publication status | Published - 1 Oct 2018 |
Publication type | A1 Journal article-refereed |
Keywords
- Integrated optics
- Nonlinear optics
- Optical devices
Publication forum classification
- Publication forum level 1
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Computer Science
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering