The Role of Fiber Bending on Polarization and Intensity Losses

Abstract

In this research the effect of the bending fiber on the laser polarization is studied. It is found that the bending does not affect the plane polarization state of the laser as far as the change of output intensity with the polarization angle and obeys Malus relation determined as experimentally. It is found also that the bending of the fiber affect the output intensity and intensity losses, where the experimental results obtained, showed that the output intensity increases exponentially with the fiber radius of curvature, while intensity losses increases exponentially upon decreasing the fiber radius of curvature, which completely agree with theoretical relations.