Open AccessDesign of optical fibre coaxial couplers with arbitrary modal electric field
Author(s) -
Aidinis Konstantinos,
Angelis Kostas,
Boucouvalas Anthony
Publication year - 2020
Publication title -
iet optoelectronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.379
H-Index - 42
eISSN - 1751-8776
pISSN - 1751-8768
DOI - 10.1049/iet-opt.2018.5155
Subject(s) - modal , coaxial , electric field , coaxial cable , optical fiber , field (mathematics) , materials science , optics , physics , engineering , electrical engineering , composite material , mathematics , cable gland , quantum mechanics , pure mathematics
The authors analyse a method, which leads to an efficient and precise algorithm for synthesising coaxial, optical fibre couplers of arbitrary modal electric‐field distributions. Their purpose is to design a fibre optic index profile supporting two pre‐selected mode fields such that their interference transfers all the optical power spatially from the core region to a cladding part of the optical fibre completely. To deal with this problem, they apply inverse transmission‐line techniques. Using the desired electric field, they work inversely and synthesise the appropriate refractive index profile of the couplers with excellent crosstalk. They envisage one can apply this technique to design fibre optic coaxial components acting as filters in sensing and numerous other applications.