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Université Jean Monnet – Saint-Etienne |  |
Journal articles
Specklegram in a grapefruit fiber and its response to external mechanical disturbance in a SMS fiber structure
Abstract : Specklegram in multimode fiber has successfully been used as a sensor for detecting mechanical disturbance. Speckles in a multimode pure silica grape fruit fiber are observed and compared to that of a step-index multimode fiber, showing different features between them. The sensitivities to external disturbance of two kinds of fiber were measured, based on single-multiple-single mode(SMS)fiber structure. Experimental results show that the grapefruit fiber shows higher sensitivity than does the step-index multimode fiber. The transmission spectrum of the grapefruit fiber was measured as well, showing some oscillation features that are significantly different from that of a step-index multimode fiber. The experiments may provide suggestions to understand the mechanisms of light propagation in grapefruit fibers.
https://hal-ujm.archives-ouvertes.fr/ujm-00356183
Contributor : Jean-Pierre Meunier <>
Submitted on : Monday, January 26, 2009 - 6:07:57 PM
Last modification on : Thursday, June 3, 2021 - 2:30:06 PM
Contributor : Jean-Pierre Meunier <>
Submitted on : Monday, January 26, 2009 - 6:07:57 PM
Last modification on : Thursday, June 3, 2021 - 2:30:06 PM