Abstract
This paper reports on the writing of long period gratings (LPGs) in a six-ring pure silica solid core, and large mode area photonic crystal fiber (fiber core diameter ρ = 10.1 μm) using a CO2 laser system, and the characterization of their strain and temperature sensitivities. Temperature and strain sensitivities in the order of −19.6 pm/°C and −88 pm/μɛ, respectively, were obtained, which were comparable or surpassed values of the similar photonic crystal fiber (PCF)-based LPG or sensor configurations found in the literature.
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Chaves, R.C., Pohl, A.d.A.P., Abe, I. et al. Strain and temperature characterization of LPGs written by CO2 laser in pure silica LMA photonic crystal fibers. Photonic Sens 5, 241–250 (2015). https://doi.org/10.1007/s13320-015-0250-3
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DOI: https://doi.org/10.1007/s13320-015-0250-3