Abstract
We propose and demonstrate a dispersion control technique by combination of different waveguide cross sections in an aluminum nitride micro-ring resonator. Narrow and wide waveguides with normal and anomalous dispersion, respectively, are linked with tapering waveguides and enclosed in a ring resonator to produce a total dispersion near zero. The mode-coupling in multimoded waveguides is also effectively suppressed. This technique provides new degrees of freedom and enhanced flexibility in engineering the dispersion of microcomb resonators.
| Original language | English |
|---|---|
| Pages (from-to) | 30634-30640 |
| Number of pages | 7 |
| Journal | Optics Express |
| Volume | 23 |
| Issue number | 24 |
| DOIs | |
| State | Published - 30 Nov 2015 |
| Externally published | Yes |