THERMAL BEHAVIOR OF AN ETCHED FBG IMMERSED IN DIFFERENT SURROUNDINGS
Keywords:
etched fiber Bragg grating, refractive index sensitivity, thermal sensitivity, sensorsAbstract
This work shows results from an experimental study of the thermal sensitivity of an etched fiber Bragg grating immersed in several different surrounding media. The used FBG has a diameter of (9.0 ± 0.5) μm resultant from the etching process. The device thermal sensitivity shows a decrease when the surroundings refractive index rises, changing from negative to positive values depending on the external medium refractive index and temperature range. Besides that, a noticeable non-linearity is observed on the grating thermal response when the surroundings refractive index rises towards the fiber-cladding index. These behaviors are attributed to the combined effects of the device response to temperature and surroundings refractive index.
References
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long period grating,” Journal of Microwaves and Optoelectronics, vol. 3, n. 5, pp. 47-55, 2004.
[2] X. Shu, B. A. L. Gwandu, Y. Liu, L. Zhang, and I. Bennion, “Sampled fiber Bragg grating for simultaneous refractiveindex and temperature measurement,” Optics Letters., vol. 26, pp. 774-776, 2006.
[3] X. Chen, K. Zhou, L. Zhang, and I. Bennion, “Simultaneous measurement of temperature and external refractive index
by use of a hybrid grating in D fiber with enhanced sensitivity by HF etching,” Applied Optics, vol. 44, pp. 178-182,
2005.
[4] A. Cusano, A. Iadicicco, S. Campopiano, M. Giordano, and A. Cutolo, “Thinned and micro-structured fibre Bragg
gratings: towards new all-fibre high-sensitivity chemical sensors,” Journal of Optics A: Pure Applied Optics, vol. 7, pp.
734-741, 2005.
[5] A. Iadicicco, A. Cusano, S. Campopiano, A. Cutolo, and M. Giordano, “Thinned Fiber Bragg Gratings as Refractive
Index Sensors,” IEEE Sensors Journal, vol. 5, pp. 1288-1295, 2005.
[6] K. Zhou, X. Chen, L. Zhang, and I. Bennion, “Implementation of optical chemsensors based on HF-etched fibre Bragg
grating structure,” Measurement and Science Technology, vol. 17, pp. 1140-1145, 2005.
[7] X. Sang, C. Yu, T. Mayteevarunyoo, K. Wang, Q. Zhang, and P. L. Chu, “Temperature-insensitive chemical sensor
based on a fiber Bragg grating,” Sensors and Actuators B, vol. 120, pp. 754-757, 2007.
[8] A. Iadicicco, S. Campopiano, A. Cutolo, M. Giordano, and A. Cusano, “Self temperature referenced refractive index
sensor by non-uniform thinned fiber Bragg gratings,” Sensors and Actuators B, vol. 120, pp. 231-237, 2006.
[9] R. C. Kamikawachi, G. R. C. Possetti, M. Muller, and J. L. Fabris “Non-Linear Behavior of Long Period Grating
Thermal Sensitivity in Different Surroundings,” Journal of Microwaves and Optoelectronics, vol. 6, pp. 336-345, 2007
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Published
2007-08-01
How to Cite
Ricardo C. Kamikawachi, Hypolito J. Kalinowski, Marcia Muller, José L. Fabris, & Ilda Abe, João L. Pinto. (2007). THERMAL BEHAVIOR OF AN ETCHED FBG IMMERSED IN DIFFERENT SURROUNDINGS. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 6(2), 392–397. Retrieved from http://www.jmoe.org/index.php/jmoe/article/view/227
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Regular Papers
