Fabrication of long-period fibre grating by CO/sub 2/ laser-annealing in fibre-drawing process |
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| Authors: | Hirose T Saito K Kojima S Yao B Ohsono K Sato S Takada K Ikushima AJ |
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| Affiliation: | Dept. of Electron. Eng., Gunma Univ.; |
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| Abstract: | Long-period fibre grating (LPFG) writing by a CO2 laser-annealing using a fibre-drawing process is demonstrated. The fibre in the drawing process was irradiated periodically by a CO2 laser to modify the refractive index. An LPFG with transmission loss of -10 dB and full width at half-maximum of 13 nm has been fabricated. Results show that the refractive index change was induced by stress at the moment of laser annealing |
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