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Remote Measurement of the Angular Velocity Vector Based on Vectorial Doppler Effect Using Air-Core Optical Fiber
Zhenyu Wan1,2, Yize Liang1,2, Xi Zhang1,2
1Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074 Hubei, China.
Research (Washington, D.C.)
|September 21, 2022
Summary
This study introduces a novel vectorial Doppler effect velocimeter using kilometer-long air-core fiber for remote angular velocity measurement. The system accurately determines movement direction even with environmental interference, showcasing practical application potential.
Area of Science:
- Optics and Photonics
- Metrology
- Fiber Optics
Background:
- The rotational Doppler effect has seen significant advancements.
- Previous work introduced a vectorial Doppler effect using spatially variant polarized light for simultaneous speed and direction acquisition.
Purpose of the Study:
- To propose and demonstrate a flexible and robust velocimeter based on the vectorial Doppler effect.
- To enable remote measurement of vectorial angular velocity information in situ using kilometer-scale air-core fiber.
Main Methods:
- Utilizing a kilometer-length air-core fiber for remote sensing.
- Employing the vectorial Doppler effect for angular velocity measurement.
- Experimental validation of the velocimeter's accuracy and robustness.
Main Results:
- Successful construction of a flexible and robust velocimeter.
- Demonstrated commendable accuracy in determining movement direction despite environmental interference.
- Substantiated the system's capability for remote vectorial information measurement.
Conclusions:
- The vectorial Doppler effect offers a novel approach for velocimetry.
- Air-core fiber technology enables robust remote measurements of angular velocity.
- The developed system shows significant potential for practical applications and remote sensing scenarios.
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