Abstract
Improvement to the Sellmeier equation for the extraordinary index of periodically poled LiNbO3 crystal (PPLN) is reported. The equation has been improved based on a continuous tunable mid-infrared radiation realizing in a PPLN crystal using difference-frequency-generation (DFG) and quasi-phase-matching (QPM) technique. The improved equation is suitable to estimate the QPM conditions of PPLN crystal for temperatures between 25 °C and 180 °C and mid-infrared wavelengths ranging from 2.8 μm to 4.8 μm.
| Original language | English |
|---|---|
| Pages (from-to) | 110-114 |
| Number of pages | 5 |
| Journal | Optics Communications |
| Volume | 268 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Dec 2006 |
| Externally published | Yes |
Keywords
- Difference-frequency generation
- PPLN crystal
- Sellmeier equation