Large second harmonic generation enhancement in Si3N4 waveguides by all-optically induced quasi-phase-matching
oleh: Adrien Billat, Davide Grassani, Martin H. P. Pfeiffer, Svyatoslav Kharitonov, Tobias J. Kippenberg, Camille-Sophie Brès
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2017-10-01 |
Deskripsi
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.