dc.creator | JOSE ALBERTO DUARTE MOLLER | |
dc.date | 2011 | |
dc.date.accessioned | 2018-11-19T14:48:37Z | |
dc.date.available | 2018-11-19T14:48:37Z | |
dc.identifier | http://cimav.repositorioinstitucional.mx/jspui/handle/1004/997 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/2262136 | |
dc.description | Recently, the usage of optical fiber coils has increased significantly, especially in
the design of physic and chemical sensors. Therefore, it is important to test the
theoretical current models developed to predict the power loss throughout optical fiber.
In this paper a pioneer and popular model, the Marcuse model of power loss, was
studied and evaluated for optical fiber coils of small radii. Power attenuation in a bent
fiber data was collected using an Optical Time Domain Reflectometer (OTDR), and it
was compared to the theoretical predictions of the Marcuse model. It was observed that
the model predicts correctly the attenuation behavior for usual curvature radii, however,
it fails to predict accurately the attenuation behavior for small curvature radii,
underestimating considerably the actual power loss. Also, it has been observed that at
small radii the power loss parameter 2α and the mode propagation constant of the wave
guide β stop being constants and become functions of the optical path, particularly of
the number of loops in the coil. It is possible that new mechanisms of light leaking are
present, due to the extreme distortion of the modes configuration into the fiber at small
radii. Those mechanisms cannot be described by a model that considers a power loss
parameter 2α, and more specifically the mode propagation constant of the wave guide
(β) as constants. Then it is important to develop other models where the previous
parameters can be considered as functions of the optical path. | |
dc.format | application/pdf | |
dc.language | eng | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.rights | http://creativecommons.org/about/cc0/ | |
dc.subject | info:eu-repo/classification/light power attenuation/Marcuse model | |
dc.subject | info:eu-repo/classification/OTDR/multimode optical fiber | |
dc.subject | info:eu-repo/classification/cti/1 | |
dc.subject | info:eu-repo/classification/cti/22 | |
dc.subject | info:eu-repo/classification/cti/2299 | |
dc.subject | info:eu-repo/classification/cti/229999 | |
dc.title | Marcuse´s power loss model tested for optical fiber coils of small radius. | |
dc.type | Artículos de revistas | |
dc.type | info:eu-repo/semantics/submittedVersion | |