Title :
Suspended core size effect in interaction of longitudinal acoustic waves and fiber Bragg gratings
Author :
Silva, Ricardo E. ; Hartung, Alexander ; Rothhardt, Manfred ; Pohl, Alexandre A. P. ; Bartelt, Hartmut
Author_Institution :
Inst. of Photonic Technol. (IPHT), Jena, Germany
Abstract :
The interaction between longitudinal acoustic waves and Bragg gratings is numerically investigated for suspended core fibers. The encircle core is increased from 1 to 6.6 μm and the mechanical properties and the grating properties are calculated using a finite element method and a transfer matrix method. Interestingly, while the generated strain in the core increases with decreasing core diameter, the achievable side lobe reflectivity of the Bragg gratings is reduced.
Keywords :
Bragg gratings; acoustic wave propagation; acousto-optical modulation; finite element analysis; optical fibres; core strain; fiber Bragg grating; finite element method; longitudinal acoustic waves-Bragg grating interaction; mechanical properties; side lobe reflectivity; suspended core fiber; suspended core size effect; transfer matrix method; Contamination; Numerical models; Optical fibers; Optical modulation; Acousto-optic modulators; Bragg gratings; suspended core fibers;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646539
