弯曲、侧压对单模光纤偏振度的影响

Influence of Bending and Lateral Pressure on the Degree of Polarization of a Siugle-Mode Optical Fiber

本文运用受扰光纤统一理论,对弯曲、侧压力场作用下的单模圆光纤进行了定性和定量的分析。通过建立场模型、受扰光纤电磁场的求解以及“入射-出射”关系式的应用,从解析和数值两方面研究了入射线偏振光的偏振角θ_i、弯曲半径月以及侧压力f对受扰光纤出射光偏振度DOP的影响。

Circular single-mode optical fiber under the force field of bending or lateral pressure is analysed qualitatively and quantatively according to the Unified Theory of Disturbed Optical Fiber (UTDOF). Establishing the external force models, solving the EM fields of the disturbed fiber and applying the 'Incidence-Emergence'relations, the influences of the polarization angle θ_i of incident linearly-polarized light, the radius of curvature R and the lateral pressure f on the degree of polarization (DOP) of emergent light are studied analytically and numerically.