Title :
An Optical Fiber Tip Micrograting Thermometer
Author :
Jing Feng ; Ming Ding ; Jun-long Kou ; Fei Xu ; Yan-qing Lu
Author_Institution :
Nat. Lab. of Solid State Microstructures, Nanjing Univ., Nanjing, China
Abstract :
An ~ 12-μm-long Bragg grating was engraved in an ~ 5-μm-diameter optical fiber tip by focused ion beam (FIB) milling. An ~ 10-dB extinction was achieved at 1570 nm with only 11 indentations. The grating was used for temperature sensing, and it exhibited a temperature sensitivity of ~ 22 pm°C.
Keywords :
Bragg gratings; fibre optic sensors; focused ion beam technology; indentation; micro-optics; milling; thermometers; Bragg grating; focused ion beam milling; indentations; micrograting thermometer; optical fiber tip; temperature sensing; wavelength 1570 nm; Fiber gratings; Geometry; Gratings; Optical fiber devices; Optical fibers; Temperature measurement; Fiber gratings; optical fiber devices; optical fiber sensors; temperature sensors;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2011.2165835
