Title :
Anomaly of modal field in side-tunnel single-polarisation fibre
Author :
Hayata, Kousei ; Eguchi, Masanori ; Koshiba, Masanori ; Suzuki, M.
Author_Institution :
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 :
light polarisation; optical fibres; core region; cross-sectional shapes; fundamental mode; hollow tunnels; modal field anomaly; side-tunnel single-polarisation optical fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860574
