研究目的
To study the stress distribution characteristics of the optical fiber with triple sector stress elements and optimize its structure for improved coupling efficiency and stable circular polarization state transmission.
研究成果
The study concludes that the stress oscillation amplitude of the optical fiber with triple sector stress elements can be maximized by positioning the stress elements as close as possible to the core and selecting an optimum expanded angle of 60°. The optimized fiber structure achieves a maximum stress oscillation amplitude, improving coupling efficiency and enabling stable circular polarization state transmission.
研究不足
The study is limited to the simulation of stress distribution characteristics and does not include experimental validation. The practical fabrication constraints, such as the minimum distance between the stress element and the core boundary, are also considered.
1：Experimental Design and Method Selection:
The study uses the solid mechanics module of COMSOL Multiphysics software to simulate the optical fiber with triple sector stress elements. The relationship between the stress oscillation amplitude and structural parameters is analyzed.
2：Sample Selection and Data Sources:
The optical fiber parameters include elastic Young's modulus, Poisson's ratio, core radius, and thermal expansion coefficients of the core, cladding, and stress element.
3：List of Experimental Equipment and Materials:
COMSOL Multiphysics software is used for simulation.
4：Experimental Procedures and Operational Workflow:
The stress distribution is simulated numerically, focusing on the average normal stress, shear stress, and half normal stress difference.
5：Data Analysis Methods:
The stress oscillation amplitude is analyzed in relation to the distance from the stress element center to the core center and the stress element area.
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