Displacements of the resonant peaks of a long-period fiber grating induced by a change of ambient refractive index
- 1 December 1997
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 22 (23) , 1769-1771
- https://doi.org/10.1364/ol.22.001769
Abstract
We present a graphic method of analyzing the spectral displacements of a long-period fiber grating as a function of ambient index. Mode dependence of the maximum displacement, disappearance of a particular resonance peak, and spectral behavior when the ambient index is larger than that of the cladding material are investigated and compared with experimental results.Keywords
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