Theoretical analysis of the modal dispersion induced by stresses in a multimode plastic optical fibre
The authors have analysed how bending, torsion and tensile stresses affect the dispersion and polarisation in a plastic optical fibre. This respectively becomes locally uniaxial and inhomogeneous, biaxial and inhomogeneous, and uniaxial and homogeneous, with little variation in the dispersion. The polarisation changes rapidly and the induced anisotropy is of the order of that produced in the manufacturing process.