Optics Communications, volume 485, pages 126729
Tactical-grade interferometric fiber optic gyroscope based on an integrated optical chip
Kejun Shang
1
,
Ming Lei
2
,
Qiang Xiang
2
,
Yonglin Na
2
,
Lizhe Zhang
2
2
State Key Laboratory of Inertial Technology, Beijing Institute of Automatic Equipment, Beijing 100074, China
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Publication type: Journal Article
Publication date: 2021-04-01
Journal:
Optics Communications
scimago Q2
SJR: 0.538
CiteScore: 5.1
Impact factor: 2.2
ISSN: 00304018, 18730310
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Abstract
We present a tactical-grade interferometric fiber optic (IFOG) based on integrated optical chip (IOC). The chip comprises a light source, a photodiode , a polarizer , a double Y-junction and a phase modulator. By using a small-diameter sensing coil, and a signal-detection circuit, an IFOG based on IOC is realized. This allows for a significant reduction in the IFOG’s size, weight, power consumption and cost (SWaP-C). Preliminary performance data of a gyro prototype exhibits 0.12 deg/h bias instability over 1000 min. For the first time, to our knowledge, tactical-grade IFOG is realized based on integrated optical components except fiber coil. • A tactical-grade interferometric fiber optic (IFOG) based on integrated optical chip (IOC) is realized. • The chip comprises a light source, a photodiode , a polarizer, a double Y-junction and a phase modulator, except the fiber coil. • A small-diameter sensing coil, and a miniature signal-detection circuit are used in IFOG. • Preliminary performance data of a gyro prototype exhibits 0.12 deg/h bias instability over 1000 min.
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