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Long period gratings written in large-mode area photonic crystal fiber

: Nodop, D.; Linke, S.; Jansen, F.; Limpert, J.; Tünnermann, A.; Rindorf, L.


Applied Physics. B 92 (2008), No.4, pp.509-512
ISSN: 0340-3793
ISSN: 0721-7269
ISSN: 0946-2171
ISSN: 1432-0649
Journal Article
Fraunhofer IOF ()

We report for the first time, to the best of our knowledge, on the fabrication and characterization of CO2-laser written long-period gratings in a large-mode area photonic crystal fiber with a core diameter of 25 mu m. The gratings have low insertion losses (< 1 dB) and high attenuation (> 10 dB) at the resonant wavelengths, making them particularly interesting for high power applications.