Modeling of the Propagation Loss and Backscattering in Air-Core Photonic-Bandgap Fibers

Dangui, Vinayak; Digonnet, Michel J. F.; Kino, G. S.

doi:10.1109/jlt.2008.2010876

Cited by 21 publications

(7 citation statements)

References 12 publications

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“…Given the comparatively high loss of our air-core fiber ͑ϳ24 dB/ km͒, this contribution is expected to dominate and to be significantly larger than in a conventional fiber. A recent model of this mechanism has shown that the backscattering coefficient should be 1.5ϫ 10 −6 m −1 [11]. This prediction is supported by the one and only reported measurement of backscattering in an air-core fiber [12].…”

supporting

confidence: 65%

Measurement of reduced backscattering noise in laser-driven fiber optic gyroscopes

et al. 2010

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We report what we believe to be the first demonstration of a laser-driven fiber optic gyroscope (FOG) built with an air-core fiber. Its phase noise is measured to be 130 murad/ radicalHz. When the sensing fiber is replaced with a conventional fiber, this figure drops to 12 murad/ radicalHz. Comparison between these values suggests that the air-core fiber gyro is most likely not limited solely by backscattering noise but by reflections at the solid-core/air-core interface. By minimizing additional noise sources and reducing the air-core fiber loss to its theoretical limit (approximately 0.1 dB/km), we predict that the backscattering noise of the laser-driven air-core FOG will drop below the level of current FOGs. Compared with commercial FOGs, this FOG will exhibit a lower noise, improved thermal and mean-wavelength stability, and reduced magnetic-field sensitivity.

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supporting

confidence: 65%

Measurement of reduced backscattering noise in laser-driven fiber optic gyroscopes

et al. 2010

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“…The back-reflection at the SMF–HCF coupling point was measured to be about −34 dB at each end. The backscattering coefficient of the HCF itself (filled with air at atmospheric pressure) was measured to be ten times higher than the Rayleigh scattering coefficient in a standard SMF 29 .…”

Section: Resultsmentioning

confidence: 89%

Intense Brillouin amplification in gas using hollow-core waveguides

2020

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Among all the nonlinear effects stimulated Brillouin scattering offers the highest gain in solid materials and has demonstrated advanced photonics functionalities in waveguides. The large compressibility of gases suggests that stimulated Brillouin scattering may gain in efficiency with respect to condensed materials. Here, by using a gas-filled hollow-core fibre at high pressure, we achieve a strong Brillouin amplification per unit length, exceeding by six times the gain observed in fibres with a solid silica core. This large amplification benefits from a higher molecular density and a lower acoustic attenuation at higher pressure, combined with a tight light confinement. Using this approach, we demonstrate the capability to perform large optical amplifications in hollow-core waveguides. The implementations of a low-threshold gas Brillouin fibre laser and a high-performance distributed temperature sensor, intrinsically free of strain cross-sensitivity, illustrate the potential for hollow-core fibres, paving the way to their integration into lasing, sensing and signal processing.

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“…e l s e v i e r . c o m / l o c a t e / y o f t e will induce higher level of backscattered light [8,9]. The pigtail of the MIOC and the fiber used in the fiber coil are different.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Noise analysis and measurement of high sensitivity photonic crystal fiber-optic gyroscope

Teng

Jin

Huang

et al. 2015

Optical Fiber Technology

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Modeling of the Propagation Loss and Backscattering in Air-Core Photonic-Bandgap Fibers

Cited by 21 publications

References 12 publications

Measurement of reduced backscattering noise in laser-driven fiber optic gyroscopes

Measurement of reduced backscattering noise in laser-driven fiber optic gyroscopes

Intense Brillouin amplification in gas using hollow-core waveguides

Noise analysis and measurement of high sensitivity photonic crystal fiber-optic gyroscope

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