Abstract
A six section widely tunable laser based on slots etched into the waveguide is presented. This laser is re-growth free which makes it suitable for photonics integration. To improve the laser performance, the front and the back facets are anti- reflection (AR) coated and the laser is integrated with a semiconductor optical amplifier. A tuning range of 55nm covering 12 supermodes with side mode suppression ratio (SMSR) >30dB is reported for the fabricated device using the Vernier tuning effect. This laser platform requires very simple fabrication compared with more complex superstructure gratings.
| Original language | English |
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| Pages (from-to) | 18949-18957 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 22 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 11 Aug 2014 |