Optical fibre long-period grating sensors: characteristics and application

Recent research on fibre optic long-period gratings (LPGs) is reviewed with emphasis placed upon the characteristics of LPGs that make them attractive for applications in sensing strain, temperature, bend radius and external index of refraction. The prospect of the development of multi-parameter sensors, capable of simultaneously monitoring a number of these measurands will be discussed.

• RS
  Royal Society
• RC
  Research Councils UK
• EA
  Engineering and Physical Sciences Research Council