Deposition of coatings on long-period fiber gratings: tunnel effect analogy
Fecha
2006Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
|
10.1007/s11082-006-9002-3
Resumen
The sensitivity of Long-period fiber gratings (LPFGs), coated with high-refractive-index thin
film overlays, to the refractive index and the thickness of the overlay, and to the ambient refractive
index, can be enhanced with a design based on a two-overlay coating of an LPFG. The first overlay of
lower refractive index than the cladding affects the guidance of a cladding mode in the second ove ...
[++]
The sensitivity of Long-period fiber gratings (LPFGs), coated with high-refractive-index thin
film overlays, to the refractive index and the thickness of the overlay, and to the ambient refractive
index, can be enhanced with a design based on a two-overlay coating of an LPFG. The first overlay of
lower refractive index than the cladding affects the guidance of a cladding mode in the second overlay
of higher refractive index than the cladding. This causes a more abrupt cladding modal redistribution
than with the deposition of a unique high-refractive-index overlay. The phenomenon is analyzed with a
method based on a vectorial analysis of modes and the application of coupled mode theory. [--]
Materias
Gratings,
Coupled-mode analysis,
Thin films,
Optical fiber sensors
Editor
Springer
Publicado en
Optical and Quantum Electronics (2006) 38:655–665
Notas
This is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: http://dx.doi.org/0.1007/s11082-006-9002-3
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
This work was supported by Spanish Ministerio de Ciencia y Tecnologia
and FEDER Research Grants CICYT-TIC 2003-00909, Gobierno de Na-
varra and FPU MECD Grant.