Journal
SCIENTIFIC REPORTS
Volume 11, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-021-81555-3
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Funding
- Engineering and Physical Research Council (EPSRC) [EP/P005624/1]
- UK Research and Innovation (UKRI)
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/S001573/1]
- Royal Society [RGS/R1/201365]
- Doctoral Training Accounts (DTA)
- EPSRC [EP/P005624/1, EP/S001573/1] Funding Source: UKRI
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This study shows that engineering the dispersion of AlGaAs-OI waveguides has a significant impact on supercontinuum generation, allowing for broadband supercontinua. This novel platform has great potential in exploring fundamental physics and realizing highly efficient, compact nonlinear devices.
The effect of engineering the dispersion of AlGaAs-on-insulator (AlGaAs-OI) waveguides on supercontinuum generation is investigated at telecom wavelengths. The pronounced effect the waveguide width has on the nonlinear dynamics governing the supercontinua is systematically analyzed and the coherence of the spectra verified with numerical simulations. Using dispersion engineered AlGaAs-OI waveguides, broadband supercontinua were readily obtained for pulse energies of similar to 3 pJ and a device length of only 3 mm. The results presented here, further understanding of the design and fabrication of this novel platform and describe the soliton and dispersive wave dynamics responsible for supercontinuum generation. This study showcases the potential of AlGaAs-OI for exploring fundamental physics and realizing highly efficient, compact, nonlinear devices.
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