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首页> 外文期刊>Optics and Spectroscopy >Mathematical Modeling of Random Coupling between Polarization Modes in Single-Mode Optical Fibers: VII. Zero Drift in a Fiber Ring Interferometer with a Circuit Formed by a Twisted Optical Fiber with Weak Natural Linear Birefringence
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Mathematical Modeling of Random Coupling between Polarization Modes in Single-Mode Optical Fibers: VII. Zero Drift in a Fiber Ring Interferometer with a Circuit Formed by a Twisted Optical Fiber with Weak Natural Linear Birefringence

机译：单模光纤中偏振模之间随机耦合的数学建模：VII。光纤环形干涉仪中的零漂移，其电路由具有弱自然线性双折射的扭曲光纤形成

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Zero drift and fading of the interference signal determined by polarization nonreciprocity at the exit from a fiber ring interferometer (FRI) of great length designed for recording a number of general relativity (GR) effects and made on the basis of a uniformly twisted single-mode optical fiber (SMF) with weak natural birefringence are considered. The calculations are carried out by numerical simulation using the model of random coupling between orthogonal polarization modes in an SMF, which was proposed in the first part of this work. The so-called minimum arrangement of an FRI with a nonmonochromatic radiation source, including a linear polarizer located between two beam splitters, is considered. Numerical estimates are made. It is shown that the FRI with a circuit on the basis of a twisted SMF has a significantly smaller zero drift and significantly smaller fading of the interference signal than the FRI with a circuit formed by an untwisted SMF. It is shown that the FRI produced on the basis of a twisted SMF provides the polarization sensitivity necessary for detecting the GR effects under study.
机译：由长距离的光纤环形干涉仪（FRI）的出口处的偏振不易确定的干扰信号的零漂移和衰落，用于记录多种广义相对论（GR）效果，并且基于均匀扭曲的单模进行考虑了具有弱自然双折射的光纤（SMF）。该计算是通过使用SMF中正交极化模式之间的随机耦合模型通过数值模拟进行的，该模型是在本工作的第一部分中提出的。考虑了具有非单色辐射源的FRI的所谓最小布置，该辐射源包括位于两个分束器之间的线性偏振器。进行数值估计。示出了，与具有由未扭曲的SMF形成的电路的FRI相比，具有基于扭曲的SMF的电路的FRI具有显着更小的零漂移和显着更小的干扰信号的衰落。结果表明，基于扭曲的SMF生产的FRI提供了检测所研究GR效应所需的极化灵敏度。

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