Journal
OPTICS LETTERS
Volume 38, Issue 17, Pages 3359-3362Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.38.003359
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Funding
- UNSW Vice-Chancellors Research Fellowship
- ECR/FRP grant from the Faculty of Engineering UNSW
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Polymer micro-fibers with inscribed Bragg gratings are reported in this Letter. Starting with a single-mode polymer optical fiber and implementing a two-stage tapering process, a 16 mu m diameter micro-fiber is fabricated and a Bragg grating is inscribed in it that exhibits a peak reflected wavelength circa 1530 nm. The growth dynamics of the polymer micro-fiber Bragg grating are also observed and analyzed. A maximum reflectivity of 5% is obtained after an exposure time of 3 min to a 50 mW power He-Cd laser of 325 nm wavelength. The temperature and strain characterization results of the micro-fiber Bragg grating with different diameters are also presented. Such polymer micro-fiber Bragg gratings can be used as sensors for high-sensitivity measurements in a number of application areas. (C) 2013 Optical Society of America
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