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Efficient grating writing through fibre coating with femtosecond IR radiation and phase mask |
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| Authors: | Mihailov S.J. Grobnic D. Smelser C.W. |
| Affiliation: | Commun. Res. Centre Canada, Ont.; |
| Abstract: | Bragg gratings have been written through the polymer coating into hydrogen loaded SMF-28 fibres with ultrafast 800 nm radiation and a phase mask. Index modulations of up to 3.5times10-4 were induced with fibre strengths remaining at ~85% of the pristine fibre value |
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