Mr. Xiaoming Zhao Profile

Xiaoming Zhao

at Tianjin Navigation Instruments Research Institute

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Publications (6)

Proceedings Article | 24 November 2021 Paper

Rotational speed measurement with three photon interference

Zhouxiang Wang, Xiaoming Zhao, Bohan Liu, Jie Yu

Proceedings Volume 12065, 120653F (2021) https://doi.org/10.1117/12.2606976

KEYWORDS: Fiber optic gyroscopes, Signal to noise ratio, Semiconductor optical amplifiers, Light sources, Interference (communication), Sensors, Beam splitters, Gyroscopes, Super resolution, Signal detection

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Proceedings Article | 24 November 2021 Paper

Feasibility research of fiber optical gyroscope based on entangled photons

Jie Yu, Ruoxiang Tang, Xiaoming Zhao, Zhouxiang Wang, Bohan Liu

Proceedings Volume 12065, 1206533 (2021) https://doi.org/10.1117/12.2606846

KEYWORDS: Photons, Fiber optic gyroscopes, Light sources, Navigation systems, Prototyping, Interferometry, Gyroscopes, Fiber optics, Super resolution, Phase measurement

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Proceedings Article | 24 November 2021 Paper

Study on environmental worthiness influence of optical fiber coil adhesive in FOG

Chao Tian, Xiaole Wu, Bohan Liu, Wei Luo, Miao Yan, Xiaoming Zhao, Wenlong Zuo

Proceedings Volume 12065, 1206539 (2021) https://doi.org/10.1117/12.2606893

KEYWORDS: Adhesives, Ultraviolet radiation, Optical fibers, Fiber optic gyroscopes, Molecules

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Proceedings Article | 24 November 2021 Paper

Bias instability of additional modulation from interaxial electromagnetic interference in multi-axis fiber optical gyroscope

Zejin Wang, Bohan Liu, Wei Luo, Xiaoming Zhao, Jie Yu, Xiaole Wu, Wenlong Zuo

Proceedings Volume 12065, 120653C (2021) https://doi.org/10.1117/12.2606930

KEYWORDS: Gyroscopes, Fiber optic gyroscopes, Waveguides, Electromagnetic interference

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With the rapid development of the fiber optical gyroscope technology and its widely applies, the multi-axis Fiber Optical Gyroscope (FOG) such as the triaxial FOG and its system are popular more and more.[1-2] For the requirement of less weight and less size,[2] the multi-axis FOG needs higher electromagnetic structure design skills and more critical devices compared with uniaxial FOG. The Z axis of some triaxial FOGs occur the problem of the bias instability over tolerance, which is a real engineering case in our development process. In this paper experiments are carried out after the influence factors are analyzed. Results show that the modulation of the Z axis is interfered by the other two axes. There are three test steps in the experiment including the optical unit test, the modulator test and the modulator shield test with different materials. A simulation of the original shield structure is applied in order to find the structure defects. Two defects are found on the base of the analysis of the electromagnetic structure check. The main defect is that there is a hollow structure on the top of the Z axis in the system which causes extra electromagnetic circuit from the other two axes. The other defect is that each axis is exposed under complex circumstance with less modulator shield. The modulator with less shield has the merit of less thermal stress owing to the free contraction between the metal packaging and the modulator. In our triaxial FOG system, the modulator shield structure inherits from the uniaxial FOG with less shield, in order to decrease the thermal stress. As we know, in the uniaxal FOG the modulator will still robustly work under a clean electromagnetic circumstance, even there is no shield upon the modulator. However, in the multi-axis FOG there are obvious crosstalk interference between the different axes, when all axes are working together with a close frequency. Based on the experiments and the analysis, the following design principles are given. Firstly, the thermal factors, the vibration factors and the electromagnetic factors should be considered at the same time when the modulator shield is designed. Secondly, the Fe-Ni material has better shield effect than the common metal like Aluminum. Thirdly, there are two kinds of resins, the hard buffer and soft buffer, to connect the Y-junction fiber tail and the metal capsulation. This paper is of great use to the engineering of the multi-axis fiber optical gyroscopes and the fiber optical gyroscope system applications.

Proceedings Article | 5 November 2020 Paper

Study on influence of polymer functional resin for optical fiber sensing on FOG

Xiaole Wu, Chao Song, Xiaoming Zhao, Yinggui Shi, Bohan Liu, Yong Chen

Proceedings Volume 11569, 115690S (2020) https://doi.org/10.1117/12.2580312

KEYWORDS: Fiber optic gyroscopes, Sensors, Optical fibers, Polymers, Gyroscopes, Optical sensing

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Proceedings Article | 10 October 2020 Poster + Presentation + Paper

All-photonic-crystal-fiber polarizer based on mode-selective coupling

Hu Liang, Xiaoming Zhao, Maochun Li, Bohan Liu, Jun Ma, Jie Yu

Proceedings Volume 11554, 1155413 (2020) https://doi.org/10.1117/12.2573542

KEYWORDS: Polarizers, Fiber couplers, Photonic crystal fibers, Cladding, Numerical simulations, Polarization, Light sources, Optical components, Fiber optic gyroscopes

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Showing 5 of 6 publications

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