Title :
Inscription of Fiber Bragg Grating Arrays in Pure Silica Suspended Core Fibers
Author :
Becker, Martin ; Fernandes, Luis ; Rothhardt, Manfred ; Brückner, Sven ; Schuster, Kay ; Kobelke, Jens ; Frazão, Orlando ; Bartelt, Hartmut ; Marques, Paulo V S
Author_Institution :
Opt. Fibers & Fiber Applic., Inst. of Photonic Technol., Jena, Germany
Abstract :
Fiber Bragg grating (FBG) arrays in pure silica four-leaf-clover-shaped suspended core fibers were inscribed with two-beam interference and a deep UV femtosecond laser source. The target fibers are pure silica and do not contain any dopants, nor were they treated with hydrogen before grating inscription. The inscription method is appropriate to measure the effective mode field index of the fiber and allows confinement factors of the guided modes to be derived. Applications of such FBGs can be expected especially for fiber sensing.
Keywords :
Bragg gratings; fibre optic sensors; laser materials processing; optical fibre fabrication; SiO2; deep UV femtosecond laser; effective mode field index; fiber Bragg grating array inscription; fiber sensing; four leaf clover shaped suspended core fiber; grating inscription; guided mode; pure silica suspended core fibers; two beam interference; Femtosecond laser; fiber Bragg gratings (FBGs); optical fibers; photosensitivity; two-beam interferometry;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2028309
