Coupling between counterpropagating cladding modes in fiber Bragg gratings

David Sáez-Rodriguez, J.L. Cruz, A. Díez, M.V. Andrés

Research output: Contribution to journalArticlepeer-review


We present an experimental demonstration of energy transfer between counterpropagating cladding modes in a fiber Bragg grating (FBG). A strong FBG written in a standard photosensitive optical fiber is illuminated with a single cladding mode, and the power transferred between the forward propagating cladding mode and different backward propagating cladding modes is measured by using two auxiliary long period gratings. Resonances between cladding modes having 30 pm bandwidth and 8 dB rejection have been observed.
Original languageEnglish
Pages (from-to)1518-1520
Number of pages3
JournalOptics Letters
Issue number8
Publication statusPublished - 15 Apr 2011

Bibliographical note

© 2011 Optical Society of America
This paper was published in Optics letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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