Polarimetric Optical Fiber Sensors for Dynamic Strain Measurement in Composite Materials

Polarimetric optical ber sensors possess possibility of temperature compensation, dynamic and integral system of strain monitoring, as well as low cost of photo-detecting elements. In the paper we present results of the sensor analysis with dierent kinds of birefringent optical bers leading to an optimal setup for dynamic strain monitoring in composite materials. A great attention is put on parameters of the light sources like coherence and width of spectrum and their inuence on dynamics of the strain sensor