Power Losses in Deformed Polymer Optical Fiber Under High Temperature

This paper investigates the power losses incurred in polymer optical fibers (POFs) deformed with different bend radii of curvature and elongation ratios under high-temperature conditions. A simple tensile test is conducted to calculate the average plastic-energy density (APED) in the deformed POFs. The APED provides a key index for evaluating the power loss in deformed POFs under high temperature. Based on the experimental results, a curve-fitted equation is derived to estimate the power loss in a POF for a given set of deformation and temperature conditions. The difference between the estimated results and the experimental results is found to be less than 6%