Stress distribution optimization of the optical fiber with multiple stress elements

Abstract

Abstract The stress oscillation amplitude of the multiple stress elements optical fiber with arbitrary stress element shape is studied. The maximum stress oscillation amplitude and the optimal stress distribution structure of the fiber are determined by the expanded angle of the stress element, the shape and number of the stress elements, the area of the stress element, and the distance from the stress element center to the core center. The results show that different stress element shape fibers have different optimum expanded angles to reach the maximum stress oscillation amplitude. The stress oscillation amplitude of the rectangular stress element fiber is the largest, and the stress oscillation amplitude of the triangle stress element fiber is the smallest. For multiple stress elements optical fiber, if the number of stress elements is smaller, the corresponding stress oscillation amplitude is larger. When the stress element area is larger, the corresponding stress oscillation amplitude is larger too. As the distance from the stress element center to the core center increases, the corresponding amplitude of the stress oscillation decreases. Therefore, the maximum stress oscillation amplitude can be obtained by the triple rectangular stress elements fiber. According to these conclusions, an optimal stress distribution structure of the triple rectangular stress elements fiber is designed.