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Berry's phase analysis of polarization rotation in helicoidal fibers

机译:螺旋光纤偏振旋转的Berry相分析

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We relate Berry's topological phase to the polarization rotation of linearly polarized light in helicoidal single-mode ideal fibers where the pitch length and coil radius are allowed to change adiabatically. First we present an alternative derivation for this phase using the Serret-Frenet coordinate system and show that this phase can be derived and interpreted in terms of both solid and planar angles. The results obtained are then applied to various helicoidal fiber structures, and from this we show that the total change in the polarization rotation angle can be tailored through a judicious choice of the fiber geometry. Finally, we propose that certain helicoidal fiber configurations can be used as fiber sensors. (C) 1998 Optical Society of America. [References: 39]
机译:我们将Berry的拓扑相位与螺旋单模理想光纤中线偏振光的偏振旋转相关,其中节距长度和线圈半径可以进行绝热变化。首先,我们提出使用Serret-Frenet坐标系对该相位进行替代的推导,并表明可以根据立体角和平面角来推导和解释该相位。然后将获得的结果应用于各种螺旋形纤维结构,并由此表明,可以通过明智地选择纤维几何形状来调整偏振旋转角的总变化。最后,我们建议可以将某些螺旋光纤配置用作光纤传感器。 (C)1998年美国眼镜学会。 [参考:39]

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