1P05OC002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
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AV0Z20670512 - URE-Y (2005-2011)
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The modal coupling properties and resonance spectral response of long-period gratings (LPGs) in photonic crystal fiber (PCF) are numerically investigated with respect to its sensitivity to changes in the index of refraction of the measurand in the PCF air channels using a full-vectorial frequency-domain method. We show that the shift of wavelength resonance of a PCF-LPG structure can be extremely sensitive by appropriately designing the cladding air-channel geometry as well as the periodicity of the LPG.
