Abstract
We study theoretically the focusing effects when a Gaussian beam passing through a graded photonic crystal consisting of air holes with gradually varying radii. The device is used to couple the light between the conventional and photonic crystal waveguides. The coupling efficient is about 4 times higher than that by the linear taper structure.
| Original language | English |
|---|---|
| Pages (from-to) | 10759-10764 |
| Number of pages | 6 |
| Journal | Optics Express |
| Volume | 14 |
| Issue number | 22 |
| DOIs | |
| State | Published - Oct 2006 |