Optical Fiber Sensors

10Polymer Fiber Bragg Grating Sensors and Their Applications

David J. Webb

Contents

10.1 Introduction: Historical Development

10.2 POF vs. Silica

10.2.1 Mechanical Properties

10.2.2 Chemical Properties

10.2.3 Optical Properties

10.3 Photosensitivity

10.4 Measurand Sensitivity

10.4.1 Temperature

10.4.2 Strain

10.4.3 Water

10.4.4 Cross-Sensitivity

10.4.5 Other Grating Structures

10.5 Applications

10.5.1 Compliant Structures

10.5.2 Dynamic Sensing

10.5.3 Water Sensing

10.6 Conclusions

References

10.1 Introduction: Historical Development

Interest in grating-based sensors fabricated in polymer optical fibers (POFs) stems from the different material properties of polymers compared to silica. Polymer fiber sensors offer increased stress sensitivity ...