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- W2038965079 abstract "In this paper, we report novel long-period fiber gratings (LPFGs) fabricated by using a new writing method, which is mainly based on the thermal shock effect of focused high-frequency CO2 laser pulses at several kHz. A number of unique characteristics of such a LPFG, such as bend, torsion and transverse-load, et al, are observed by experiment, for the first time, to our knowledge. Based on these unique characteristics, a novel bend-insensitive LPFG sensor that could solve the problem of cross-sensitivity between bend and other measurands, a novel torsion sensor that can realize absolute measurement of twist rate and a load sensor that can achieve simultaneous measurement of transverse load and temperature using a single LPFG element are demonstrated. These unique features are mainly due to the asymmetrical distribution of the refractive index on the cross-section of the LPFG induced by highfrequency CO2 laser pulses." @default.
- W2038965079 created "2016-06-24" @default.
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- W2038965079 date "2002-09-10" @default.
- W2038965079 modified "2023-09-25" @default.
- W2038965079 title "Novel mechanical fiber optic sensors based on long-period fiber gratings written by high-frequency CO 2 laser pulses" @default.
- W2038965079 doi "https://doi.org/10.1117/12.482004" @default.
- W2038965079 hasPublicationYear "2002" @default.
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