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首页> 外文期刊>Optical fiber technology >Bias error and its thermal drift due to fiber birefringence in interferometric fiber-optic gyroscopes
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Bias error and its thermal drift due to fiber birefringence in interferometric fiber-optic gyroscopes

机译：由于干涉纤维 - 光学陀螺仪中的光纤双折射引起的偏差误差及其热漂移

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摘要

Polarization-maintaining fibers (PMFs) with intrinsic highly stress-induced birefringence (SIB) are widely employed in interferometric fiber-optic gyroscopes (IFOGs). The performance of which is limited by the refractive index and its thermal fluctuations induced by the temperature variation. The SIB contributes to the refractive index variously along with the temperature. However, the bias error and its thermal drift arising from the SIB in PMFs are never considered. In this paper, we present theoretical analysis on high-performance IFOGs considering the effects of the SIB and its thermal fluctuation incorporated into the early model. The numerical analysis of the proposed model shows that the accuracy of IFOG using PMFs is better than single-mode fibers (SMFs) by a factor of 2, and the high performance with ultimate sensitivity of IFOGs is achievable by the special design of PMFs which depends not only on the pure Shupe effect but also on the effects from intrinsic SIB and its temperature sensitivity.
机译：偏振保持纤维（PMF）具有内在的高度应激诱导的双折射（SIB）广泛用于干涉纤维 - 光学陀螺仪（IFOG）。其性能受到温度变化诱导的折射率的限制及其热波动。 SIB各种各样的折射率以及温度贡献。但是，从未考虑过PMF中SIB的偏差误差及其热漂移。在本文中，考虑到SIB的效果及其热波动结合到早期模型中的高性能IFOG的理论分析。所提出的模型的数值分析表明，使用PMFS的IFOG的准确性优于单模光纤（SMF）为2倍，并且通过IFOGS的最终灵敏度的高性能是可实现的PMF的特殊设计，这取决于PMF的特殊设计不仅纯粹的Shupe效应，而且还对内在SIB的影响及其温度敏感性。

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