Characterization of porous core layer for controlling rare earth incorporation in optical fiber
Anirban Dhar,Mukul Ch. Paul,Mrinmay Pal,Ashok Kr. Mondal,Suchitra Sen,Himadri Sekhar Maiti,Ranjan Sen +6 more
TLDR
The porous core layer deposited by modified chemical vapour deposition process has been analyzed in terms of thickness, pore size distribution, homogeneity and characteristics of the soot particles to investigate their variation with deposition temperature and input vapour composition.Abstract:
The porous core layer deposited by modified chemical vapour deposition process has been analyzed in terms of thickness, pore size distribution, homogeneity and characteristics of the soot particles to investigate their variation with deposition temperature and input vapour composition. The compositions selected were SiO2, SiO2-GeO2 and SiO2-P2O5. Rare earth ions were incorporated into the deposit by a solution doping technique. The analysis of deposited microstructures was found to provide a quantitative indication about the rare earth incorporation and its variation with respect to process conditions. Thus the characterization provides a method of controlling rare earth doping and ultimate preform/fiber properties.read more
Citations
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Journal ArticleDOI
Recent advances in soft optical glass fiber and fiber lasers
TL;DR: In this article, the basic requirements for the rare-earth (RE) ions and host matrix material for obtaining efficient NIR-MIR laser output, a review of the background of processing fundamentals on the fabrication and characterization for newly developed soft optical glass fibers, an outline of the key issues of platinum removal and the dehydration technique, effective doping of RE, and low splicing loss together with the recent theoretical and experimental results.
Journal ArticleDOI
Highly efficient Yb-doped silica fibers prepared by powder sinter technology
Martin Leich,Florian Just,Andreas Langner,Mario Such,Gerhard Schötz,Tina Eschrich,Stephan Grimm +6 more
TL;DR: The characteristics of an active fiber with core material made by sintering of Yb-doped silica powders as an alternative to a conventional modified chemical vapor deposition technique are reported on.
Journal ArticleDOI
Demonstration of ultra-low NA rare-earth doped step index fiber for applications in high power fiber lasers.
TL;DR: The optimized modified chemical vapor deposition process in conjunction with solution doping process allows fabrication of an Yb-doped step index fiber having an ultra-low numerical aperture of ~0.038.
Journal ArticleDOI
Integrated cladding-pumped multicore few-mode erbium-doped fibre amplifier for space-division-multiplexed communications
Haoshuo Chen,Cang Jin,Cang Jin,Bin Huang,Bin Huang,Nicolas K. Fontaine,R. Ryf,Kuanping Shang,Nicolas Grégoire,Steeve Morency,R.-J. Essiambre,Guifang Li,Guifang Li,Younes Messaddeq,Sophie LaRochelle +14 more
TL;DR: In this article, a multicore, few-mode fiber amplifier boosts 18 spatial channels simultaneously for higher data transmission capacity, achieving a state-of-the-art performance.
Journal ArticleDOI
MCVD in-situ solution doping process for the fabrication of complex design large core rare-earth doped fibers
Andrew S. Webb,Alexander J. Boyland,R.J. Standish,Seongwoo Yoo,Jayanta K. Sahu,David N. Payne +5 more
TL;DR: In this paper, the authors report on the fabrication and characterization of rare-earth doped silica fibers manufactured using an in-situ solution doping technique, which is compatible with conventional modified chemical vapor deposition equipment.
References
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Journal ArticleDOI
Solution-doping technique for fabrication of rare-earth-doped optical fibres
TL;DR: In this article, a solution-doping technique for the reproducible fabrication of low-loss optical fibres containing up to 4000 parts in 106 rare-earth ions is described.
Journal ArticleDOI
Fabrication of low-loss optical fibres containing rare-earth ions
TL;DR: In this paper, the authors used an extended MCVD process to produce rare-earth ion fibers with very high absorption levels in the visible and near infra-red regions, without significantly compromising the low-loss characteristics of the fiber at wavelengths between 950 and 1400 nm.
Journal ArticleDOI
A review of the fabrication and properties of erbium-doped fibers for optical amplifiers
TL;DR: In this article, the current status of fabrication methods, matching particular fibers for specific applications, together with optimizing the fiber for high efficiency, are presented, along with the current state of the art in fiber selection and fabrication.
Journal ArticleDOI
Structure and properties of silica containing aluminum and phosphorus near the AlPO4 join
TL;DR: Refractive index, density and thermal expansion have been measured for the system Al 2 O 3,P 2 O 5 SiO 2 near the AlPO 4 join this article.
Patent
Process for making rare earth doped optical fiber
TL;DR: In this paper, an improved process for making rare earth doped preforms and fibres by a combination of MCVD technique and solution doping method is presented, which consists of developing matched or depressed clad structure inside a silica glass substrate tube followed by deposition of unsintered particulate layer containing GeO2 and P2O5 for formation of the core and Solution doping by soaking the porous soot layer into an alcoholic/aqueous solution of RE-salts containing co-dopants like AlCl3 / Al(NO3)3 in definite proportion,