Coupling Effect of a Single-Mode Fiber Coil Under Time-Varying Temperature and Magnetic Field

Liang, Cui; Zhang, Dengwei; Zhou, Yilan; Shu, Xiaowu; Che, Shuangliang; Liu, Cheng

doi:10.1109/jlt.2019.2912813

Cited by 7 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One is that the volume of IFOGs will increase significantly, while another is that the environmental adaptability of IFOGs will be greatly reduced. Theoretical studies have been carried out to reveal about mechanism how temperature [25,26], magnetic field [27][28][29], vibration [30], and the coupling effect of physical fields [31] affect the IFOGs' performance. In a nutshell, increasing fiber length makes the asymmetric internal stress distribution in the fiber coil much more complicated, making it more susceptible to environmental factors, causing a quite large nonreciprocal phase error.…”

Section: Mainly Aimsmentioning

confidence: 99%

A Novel Approach to Double the Sensitivity of Polarization Maintaining Interferometric Fiber Optic Gyroscope

Zhang

Liang

2020

Sensors

Self Cite

View full text Add to dashboard Cite

In this paper, a novel optical approach to double the sensitivity to angular rate of interferometric fiber optic gyroscope (IFOG) is proposed. Two fiber polarization combiner/splitters (FPCSs), as the key components, are added in the traditional IFOG light path. The FPCSs are able to either combine two orthogonal polarizations transmitting at two different polarization-maintaining fibers (PMFs) into the two orthogonal axes of one PMF, respectively, or split two polarizations transmitting at the two orthogonal axes of one PMF into two polarizations to transmit at two different PMFs, respectively. Through the specific placement and coupling of these two FPCSs, the incident light can transmit twice along the polarization-maintaining fiber coil (PMFC). The novel approach is verified experimentally and the experimental results show consistency with the theoretical analysis. The proposed approach is able to double the sensitivity of IFOGs and can increase the signal-to-noise ratio (SNR) without increasing the length of PMFC, which is very susceptible to environmental influences and is of great significance in the technical improvement of IFOGs, as well as the miniaturization of IFOGs.

show abstract