Temperature Compensation in Fiber Optic Current Sensor Based on Inherent Polarization Quality Factor

被引：0

作者：

Gong, Yueyan ^{[1
]}

Lu, Wenjie ^{[1
]}

Gu, Enjie ^{[2
]}

Song, Yuejiang ^{[1
]}

机构：

[1] Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210023, Jiangsu, Peoples R China

[2] Shanghai Runjing Energy Technol Co Ltd, Shanghai 201611, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2025年 / 37卷 / 07期

关键词：

Temperature sensors; Temperature measurement; Optical fiber sensors; Optical fiber polarization; Optical fibers; Optical fiber amplifiers; Accuracy; Temperature dependence; Phase modulation; Q-factor; Fiber optic current sensor; quarter-waveplate retardation; polarization quality factor; temperature compensation;

D O I：

10.1109/LPT.2025.3547757

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose and demonstrate a temperature compensation method based on the inherent polarization quality factor (PQF) of the quarter-waveplate in the fiber optic current sensors. The PQF, dependent on the temperature, can act as a temperature sensor with a resolution of 2 degrees C in the experiment. The new compensation coefficient based on PQF is derived from the both relationships of the PQF and the temperature-dependent ratio error. This method can achieve the temperature compensation through internal PQF value instead of direct temperature, and need not require an external temperature sensor to monitor ambient temperature. The new compensation can achieve the accuracy of ratio error 0.2% within the temperature range of -40 degrees C to +72 degrees C, which is satisfied with the 0.2 Class accuracy.

引用

页码：393 / 396

页数：4

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