Journal Article10.1109/JLT.2011.2177959
Resonant Fiber Optic Gyroscope Using an Air-Core Fiber
TL;DR: In this paper, an open-loop RFOG with a 20m resonant loop of 7-cell air core fiber is closed by connecting the air-core fiber to a conventional single-mode fiber directional coupler.
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Abstract: Air-core photonic bandgap fibers (PBFs) have great potential for the resonant fiber-optic gyroscope (RFOG), because they reduce both the Kerr-induced drift and the thermal polarization instability. We experimentally studied an open-loop RFOG in which a 20-m resonant loop of 7-cell air-core fiber is closed by connecting the air-core fiber to a conventional single-mode fiber directional coupler. We measured a random walk of 0.055 °/s1/2 and a long-term drift with a standard deviation of 0.5° /s and a peak-to-peak variation of 2.5 °/s over 1 hour. We discuss the sources of error in this RFOG and identify areas for future improvement. We project that with straightforward improvements, tactical-grade performance should be possible.
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Citations
Exceptional polarization purity in antiresonant hollow-core optical fibres
Austin Taranta,E. Numkam Fokoua,S.M. Abokhamis Mousavi,John R. Hayes,Thomas D. Bradley,Gregory T. Jasion,Francesco Poletti +6 more
TL;DR: In this article, a low-nonlinearity hollow-core antiresonant fibres can transmit a single pair of orthogonal polarization modes with cross-coupling on the scale of 10-10m-1.
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Broadband high birefringence and polarizing hollow core antiresonant fibers
Seyed Mohammad Abokhamis Mousavi,Seyed Reza Sandoghchi,David J. Richardson,Francesco Poletti +3 more
TL;DR: A polarizing birefringent NANF design that can achieve orthogonal polarization loss ratios as large as 30dB over the C-band while eliminating any undesirable polarization coupling effect thereby resulting in a single polarization output in a hollow core fiber regardless of the input polarization state is proposed.
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Single-polarization single-mode double-ring hollow-core anti-resonant fiber.
TL;DR: A novel single-polarization single-mode double-ring hollow-core anti-resonant fiber with two single-Polarization regions (1545-1553 nm and 1591-1596 nm) is proposed and exhibits high-performance bend resistance.
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A High- $Q$ InP Resonant Angular Velocity Sensor for a Monolithically Integrated Optical Gyroscope
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Development and Evaluation of Optical Passive Resonant Gyroscopes
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