文档介绍：Tilted Fiber Bragg Grating
photowritten in microstructured optical fiber
for improved refractive index measurement
Minh Châu Phan Huy, Guillaume Laffont, Véronique Dewynter and Pierre Ferdinand
CEA LIST, Centre d’Etudes de Saclay, 91191 Gif-sur-Yvette cedex France
@ guillaume.******@
Laurent Labonté, Dominique Pagnoux and Philippe Roy
Xlim – Département photonique, RS 6172, 123 Avenue Albert Thomas, 87060 Limoges cedex, France
Wilfried Blanc and Bernard Dussardier
LPMC / FOA, RS 6622, Université de Nice Sophia-Antipolis, Parc Valrose, 06108 Nice France
Abstract: We report what we believe to be the first Tilted short-period Fi-
ber Bragg Grating photowritten in a microstructured optical fiber for refrac-
tive index measurement. We investigate the spectral sensitivity of Tilted Fi-
ber Bragg Grating to refractive index liquid inserted into the holes of a mul-
timode microstructured fiber. We measure the wavelength shift of the first
four modes experimentally observed when calibrated oils are inserted into
the fiber holes, and thus we determine the refractive index resolution for
each of these modes. Moreover, a parison between experimental
and simulation results of a modal analysis is performed. Two simulation
tools are used, respectively based on the localized functions method and on
a finite element method. All results are in very good agreement.
©2006 Optical Society of America
OCIS codes: () Gratings; () Fiber optics and munications;
() Fiber design and fabrication; () Fiber optic sensors; () Microstruc-
ture devices
References and Links
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mu