Influence of the Impulse Rebound on Optical Strain Sensors based on Step-Index Polymer Optical Fibers - Becker, Thomas; Werzinger, Stefan; Schmauß, Bernhard; Gehrke, Martin; Nkiwane, Emmanuel; Ziemann, O.; Engelbrecht, Rainer (POF Symposium at the Fiber Society Spring Conference, 2017)