Large second harmonic generation enhancement in Si3N4 waveguides by all-optically induced quasi-phase-matching
Phase-matching and quasi-phase-matching in periodically poled ferroelectrics ensure efficient harmonic generation, but only statically. Here, Billat et al. demonstrate all-optically reconfigurable second harmonic generation by inscribing a stable grating in CMOS-compatible nonlinear waveguides.
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Nature Publishing Group
2017-10-01
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Series: | Nature Communications |
Online Access: | https://doi.org/10.1038/s41467-017-01110-5 |