Glass and Process Development for the Next Generation of Optical Fibers: A Review

Ballato, John; Ebendorff‐Heidepriem, Heike; Zhao, Jiangbo; Petit, Laëticia; Trolès, Johann

doi:10.3390/fib5010011

Cited by 54 publications

(30 citation statements)

References 192 publications

(238 reference statements)

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“…However, due to technological limitations related to the material in an entrenched fabrication process, such new glass systems have not widely been studied utilizing the more conventional fabrication methods found in the commercial sector [154]. For instance, many of the novel silicate systems studied by these authors were fabricated using the molten core process (more details can be found in [155]) which differs significantly from the MCVD process in terms of both thermal and processing history, and ranges of compositions that can be produced.…”

Section: Discussionmentioning

confidence: 99%

A Brief Review of Specialty Optical Fibers for Brillouin-Scattering-Based Distributed Sensors

Dragic

Ballato

2018

Applied Sciences

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Specialty optical fibers employed in Brillouin-based distributed sensors are briefly reviewed. The optical and acoustic waveguide properties of silicate glass optical fiber first are examined with the goal of constructing a designer Brillouin gain spectrum. Next, materials and their effects on the relevant Brillouin scattering properties are discussed. Finally, optical fiber configurations are reviewed, with attention paid to fibers for discriminative or other enhanced sensing configurations. The goal of this brief review is to reinforce the importance of fiber design to distributed sensor systems, generally, and to inspire new thinking in the use of fibers for this sensing application.

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Section: Discussionmentioning

confidence: 99%

A Brief Review of Specialty Optical Fibers for Brillouin-Scattering-Based Distributed Sensors

Dragic

Ballato

2018

Applied Sciences

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“…Microstructured exposed-core optical fibres (ECFs) provide a broad range of optical properties demanded by biomedical refractive index sensors intended to operate inside living organisms [9][10][11][12]. ECFs confine and guide light in a small volume of a dielectric material surrounded by longitudinal air holes ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Modal interferometric refractive index sensing in microstructured exposed core fibres

2019

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Optical fibre-based sensors measuring refractive index shift in bodily fluids and tissues are versatile and accurate probes of physiological processes. Here, we suggest a refractive index sensor based on a microstructured exposed-core fibre (ECF). By considering a high refractive index coating of the exposed core, our modelling demonstrates the splitting of the guided mode into a surface sensing mode and a mode that is isolated from the surface. With the isolated mode acting as a reference arm, this two-mode one-fibre solution provides for robust interferometric sensing with a sensitivity of up to 60, 000 rad/RIU-cm, which is suitable for sensing subtle physiological processes within hard-to-reach places inside living organisms, such as the spinal cord, ovarian tract and blood vessels. © 20192. Two-mode microstructured exposed core fibreWe consider a standard ECF structure [19] (Fig. 1) that consists of a Y-shaped silica core (the refractive index n co = 1.4607, 2.2 µm size) formed by three elliptical air holes (n air = 1)

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“…To improve the spectroscopic and laser performances of rare‐earths (RE) doped materials, considerable work has been carried out for incorporation of RE‐oxide nano‐crystallites into different glass hosts . Different techniques such as cosputtering, pyrolysis, ion‐implantation, laser ablation, sol‐gel and direct nano‐particle deposition (DND) processes have been developed for the incorporation of RE nano‐particles …”

Section: Introductionmentioning

confidence: 99%

Luminescent Properties and Optical Amplification of Erbium‐Doped Nano‐Engineered Scandium‐Phospho‐Yttria‐Alumina‐Silica Glass Based Optical Fiber

Reddy

Das

Dutta

et al. 2018

Physica Status Solidi (a)

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In this work, a new erbium (Er) doped nano‐engineered scandium‐phospho‐yttria‐alumina‐silica (SPYAS) glass‐based optical fiber is reported, fabricated through the MCVD process, and solution doping technique, followed by a suitable thermal annealing of pristine preform. The fabrication process comprises the incorporation of erbium doped phase‐separated scandium‐yttria rich crystalline nanoparticles into the core region through in situ process based on phase‐separation and crystal growth phenomena. The material characterization results, obtained from transmission electron microscopy, electron diffraction pattern, energy dispersive X‐ray, electron probe micro analysis, and X‐ray fluorescence, confirm the formation of Er2O3 doped crystalline phase‐separated scandium‐yttria rich nanoparticles in the core region. The formation of scandium‐ultra rich nano‐crystalline environment, possessing low photon energy around the erbium ions, enhanced the fluorescence intensity. Such kind of nano‐engineered glass reduces the noise figure around 4.35 dB, and provides broadband optical flat gain with an average value of 38.675 dB, varied by less than ±0. 7 dB spanning over a broad wavelength region of 1530–1590 nm compared to the pristine and Sc free Er‐doped fibers. Such kind of nano‐engineered glass based Er doped fiber will be useful for making highly efficient optical amplifiers, suitable for present broadband optical communication systems.

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Glass and Process Development for the Next Generation of Optical Fibers: A Review

Cited by 54 publications

References 192 publications

A Brief Review of Specialty Optical Fibers for Brillouin-Scattering-Based Distributed Sensors

A Brief Review of Specialty Optical Fibers for Brillouin-Scattering-Based Distributed Sensors

Modal interferometric refractive index sensing in microstructured exposed core fibres

Luminescent Properties and Optical Amplification of Erbium‐Doped Nano‐Engineered Scandium‐Phospho‐Yttria‐Alumina‐Silica Glass Based Optical Fiber

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