Stresses in a partially coated optical glass fiber subjected to the ends off-set

A simple formula based on the elementary beam theory is obtained for the evaluation of the maximum bending stress in an optical glass fiber whose ends are clamped and experience lateral off-set. We consider a situation when the fiber is partially coated and/or partially metallized, and therefore its flexural rigidity is not constant along its span. The obtained formula can be helpful in the analysis and design of optical glass fibers and optical interconnects structures of the type in question.