19 May 2009 Long period fibre gratings photoinscribed in a microstructured polymer optical fibre by UV radiation
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Abstract
Long period gratings were written step-by-step in microstructured poly(methyl methacrylate) (PMMA) fibre using a continuous wave HeCd laser at 325nm irradiating the fibre with a power of 1mW. The grating had a length of 2 cm and a period of 1mm. A series of cladding mode coupling resonances were observed throughout the spectral region studied of 600 to 1100nm. The resonance wavelengths were shown to be sensitive to both surrounding refractive index and the water content of the polymer fibre.
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David Sáez-Rodríguez, Jose L. Cruz Munoz, Ian Johnson, David J. Webb, Maryanne C. J. Large, Alexander Argyros, "Long period fibre gratings photoinscribed in a microstructured polymer optical fibre by UV radiation", Proc. SPIE 7357, Photonic Crystal Fibers III, 73570L (19 May 2009); doi: 10.1117/12.823292; https://doi.org/10.1117/12.823292
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