Structural long-period gratings in photonic crystal fibers
- 15 June 2002
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 27 (12), 1013-1015
- https://doi.org/10.1364/ol.27.001013
Abstract
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 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.
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