Journal article
Narrow Bandwidth 850-nm Fiber Bragg Gratings in Few-Mode Polymer Optical Fibers
We report on the inscription and characterization of narrow bandwidth fiber Bragg gratings (FBGs) with 850-nm resonance wavelength in polymer optical fibers (POFs). We use two fibers: an in-house fabricated microstructured POF (mPOF) with relative hole size of 0.5 and a commercial step-index POF, which supports six modes at 850 nm.
The gratings have been written with the phase-mask technique and a 325-nm HeCd laser. The mPOF grating has a full-width at half-maximum (FWHM) bandwidth of 0.29 nm and the step-index POF has a bandwidth of 0.17 nm. For both fibers, the static tensile strain sensitivity is measured to be 0.71 pm/$muvarepsilon$ at 850 nm and 1.3 pm/$muvarepsilon$ at 1550 nm.
Language: | English |
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Publisher: | IEEE |
Year: | 2011 |
Pages: | 660-662 |
ISSN: | 19410174 and 10411135 |
Types: | Journal article |
DOI: | 10.1109/LPT.2011.2125786 |
ORCIDs: | Stefani, Alessio and Bang, Ole |
Bragg gratings FBG Fiber gratings Optical fiber sensors Optical fibers Optical polymers few-mode polymer optical fibers fiber-optic sensors fibre optic sensors full-width at half-maximum bandwidth holey fibres microstructured polymer optical fibers narrow bandwidth fiber Bragg gratings optical polymers phase-mask technique polymer optical fiber resonance wavelength static tensile strain sensitivity wavelength 1550 nm wavelength 850 nm