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Fiber optic accelerometer based on long period fiber grating induced by CO 2 laser pulses
Author(s) -
Shi Cuihua,
Zhu Tao,
Rao Yunjiang,
Deng Ming
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25875
Subject(s) - accelerometer , materials science , optics , optical fiber , acceleration , laser , microwave , fiber bragg grating , sensitivity (control systems) , fiber optic sensor , beam (structure) , optoelectronics , engineering , electronic engineering , computer science , physics , telecommunications , classical mechanics , operating system
An accelerometer based on the strain and bend characteristics of long period fiber grating (LPFG), which fabricated in common communication optical single mode fiber by using CO 2 laser pulses, is investigated in this article. The relationship between vibration of the uniform strength beam and the light intensity of LPFG is analyzed. Experimental results show that the acceleration measuring system has a sensitivity of ∼2.82 v/g. The error between theoretical and experimental value is about 0.82%. Such kind of accelerometers have many advantages as low cost, a high sensitivity, can withstand temperatures up to 800°C, and achieve temperature self‐compensation. It would have great potential applications in measuring in real‐time and high temperature place. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:841–845, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25875