Abstract
We present a numerical investigation on the effect of introducing the second ring of antiresonant tubes on the guiding properties of the negative-curvature fiber. We determine the range of structural parameters for achieving the optimum light guidance in the double-ring geometry. Our study shows that the double-ring negative-curvature fiber can improve the confinement loss by up to four orders of magnitude with considerably better bending and single-mode performance when compared to its single-ring counterpart.
| Original language | English |
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| Pages (from-to) | 1168-1176 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 28 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 20 Jan 2020 |