Anomaly of modal field in side-tunnel single-polarisation fibre |
| |
| Authors: | Hayata K Eguchi M Koshiba M Suzuki M |
| |
| Affiliation: | Hokkaido University, Department of Electronic Engineering, Sapporo, Japan; |
| |
| Abstract: | A noticeable anomaly of modal field in side-tunnel single-polarisation optical fibres is observed for some cross-sectional shapes. Accordingly, as hollow tunnels encroach on a core region, the field of the fundamental mode breaks up into a double peak. As a result of this transition, it closely resembles that of a higher-order mode. |
| |
| Keywords: | |
|
|
