Investigation of Strain Magnification Effect on Fiber Optic by Using COMSOL Multiphysics Software

The strain magnification effect on the conventional single mode fiber (SMF) is investigated by using solid mechanics module in COMSOL Multiphysics. The strain effect is measured by applying the hydrostatic pressure on the SMF. In this paper, different coating materials and the position of the SMF in the coating are investigated. The investigation of the strain magnification effect on the SMF by COMSOL will help to produce the best coating's parameters of SMF which suits well in distributed pressure sensing application.