• Ricardo C. Kamikawachi
  • Hypolito J. Kalinowski
  • Marcia Muller
  • José L. Fabris
  • Ilda Abe, João L. Pinto


etched fiber Bragg grating, refractive index sensitivity, thermal sensitivity, sensors


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.


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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



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