Modification of cladding-mode fields upon fibre loading with H{sub 2} and its influence on the spectral characteristics of long-period gratings
Journal Article
·
· Quantum Electronics (Woodbury, N.Y.)
- Fiber Optics Research Center, Russian Academy of Sciences, Moscow (Russian Federation)
The influence of diffusion of molecular hydrogen used to write fibre gratings on the spectral characteristics of the gratings is discussed in detail. It is shown that the additional waveguide structure formed by the concentration profile of dissolved molecular hydrogen modifies the spatial distribution of the field of fibre cladding modes, resulting in a considerable change in the coupling coefficient of long-period gratings. This modification is manifested most strongly for cladding modes with low radial indices. (optical fibres)
- OSTI ID:
- 21464458
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 1 Vol. 36; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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