Title

Fabrication of Long-period Fiber Gratings by CO₂ Laser Irradiations for High Temperature Applications

Abstract

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.

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

CO₂ Laser Irradiations; Long Period Fiber Gratings (LPFGs)

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 SPIE, All rights reserved.


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