Title :
Single mode fibres with asymmetrical refractive index pits on both sides of core
Author :
Hosaka, Tatsuya ; Okamoto, K. ; Sasaki, Yutaka ; Edahiro, T.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
Polarisation characteristics of single mode fibres with asymmetrical refractive index pits on both sides of the core have been investigated. The modal birefringence of the single mode fibre measured at ¿=1.15 ¿m was 5×10¿5. It was confirmed that the state of polarisation was stable and was scarcely affected by the ambient conditions such as concentrated force, twists of the fibre, and temperature variations.
Keywords :
birefringence; light polarisation; optical fibres; refractive index; asymmetrical refractive index; core; pits; polarisation characteristics; single mode fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19810135
