Fabrication of Long-period Fiber Gratings by CO₂ Laser Irradiations for High Temperature Applications
We report in this paper the fabrication of high performance thermal LPFGs by point-by-point CO2 laser irradiations. These thermal LPFGs have shown much better temperature tolerance and promised applications in high temperature harsh environments. The computer-controlled fabrication system with in situ signal monitoring capability is described. The fabricated LPFGs survived high temperatures up to 800°C. Long term stability test at 550°C for 200 hours indicated that thermal shock at a higher temperature could significantly reduce the drift.
T. Wei et al., "Fabrication of Long-period Fiber Gratings by CO₂ Laser Irradiations for High Temperature Applications," Proceedings of SPIE, SPIE, Sep 2007.
The definitive version is available at http://dx.doi.org/10.1117/12.731372
Electrical and Computer Engineering
Keywords and Phrases
CO₂ Laser Irradiations; Long Period Fiber Gratings (LPFGs)
Article - Conference proceedings
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