Abstract
Terahertz photonic crystal fibers are analyzed and designed using a full-vectorial 2D finite difference frequency domain method with nonsplit-field anisotropic perfectly matched layers absorbing boundary conditions. By analyzing the effective mode areas of fundamental mode and second-order mode, a phase diagram which describes the regions of single-mode and multimode operation as well as the non-confined fundamental mode regime is obtained in the terahertz region. The single-mode terahertz photonic crystal fibers with near-zero flattened dispersion are designed based on this method by optimizing the structure parameters.
| Original language | English |
|---|---|
| Pages (from-to) | 1019-1023 |
| Number of pages | 5 |
| Journal | Journal of Optics A: Pure and Applied Optics |
| Volume | 9 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1 Nov 2007 |
Keywords
- Finite difference frequency domain
- Group-velocity dispersion
- Mode cutoff
- Terahertz photonic crystal fiber