Novel long-period fiber gratings written
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Y.J Rao; T Zhu; Z.L Ran; Y.P Wang; J Jiang; A.Z Hu
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Article
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2004
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Elsevier Science
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English
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In this paper, we report novel long-period fiber gratings (LPFGs) fabricated by using a new writing technique that is mainly based on the thermal shock effect of focused high-frequency CO 2 laser pulses at several kHz. Several unique characteristics of these LPFGs, such as bend and transverse-load,