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Yuan, Wu
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Topics
Publications (6/6 displayed)
- 2012Dynamic Characterization of Polymer Optical Fiberscitations
- 2012High Sensitivity Polymer Optical Fiber-Bragg-Grating-Based Accelerometercitations
- 2011Narrow Bandwidth 850-nm Fiber Bragg Gratings in Few-Mode Polymer Optical Fiberscitations
- 2011Humidity insensitive TOPAS polymer fiber Bragg grating sensor
- 2011870nm Bragg grating in single mode TOPAS microstructured polymer optical fibrecitations
- 2011Label-free biosensing with high sensitivity in dual-core microstructured polymer optical fiberscitations
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article
Narrow Bandwidth 850-nm Fiber Bragg Gratings in Few-Mode Polymer Optical Fibers
Abstract
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.