Structural long-period gratings in photonic crystal fibers

We report what is believed to be the first example of structural long-period gratings written in pure silica photonic crystal fibers (PCFs). The gratings are realized by periodic collapse of the holes of the PCF by heat treatment with a CO(2) laser. The resulting periodic hole-size perturbation prod...

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Bibliographic Details
Published in:Optics letters 2002-06, Vol.27 (12), p.1013-1015
Main Authors: Kakarantzas, G, Birks, T A, Russell, P St J
Format: Article
Language:English
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Summary:We report what is believed to be the first example of structural long-period gratings written in pure silica photonic crystal fibers (PCFs). The gratings are realized by periodic collapse of the holes of the PCF by heat treatment with a CO(2) laser. The resulting periodic hole-size perturbation produces core-to-cladding-mode conversion. These results can lead to a new family of structural all-fiber devices that use the unique properties of PCFs.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.27.001013