Abstract
We report the design and fabrication of long-period fiber gratings with single and cascaded structures in conventional and high birefringence (hi-bi) fibers using amplitude mask and point-by-point writing techniques. We also report a novel application of long-period gratings produced in nonhigh-birefringence fiber as fiber-optic load sensors exhibiting very high transverse strain sensitivity. Sensitivity some 800 times greater than previously reported fiber Bragg grating (FBG) sensors has been achieved
Original language | English |
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Pages (from-to) | 1373-1378 |
Number of pages | 6 |
Journal | IEEE Journal of Selected Topics in Quantum Electronics |
Volume | 5 |
Issue number | 5 |
DOIs | |
Publication status | Published - Sept 1999 |
Keywords
- birefringence
- diffraction gratings
- fibre optic sensors
- optical design techniques
- optical fibre fabrication
- sensitivity