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Bismuth-doped optical fibers: a challenging active medium for near-IR lasers and optical amplifiers

TLDR
In this paper, the luminescent properties and light-emitting mechanisms of bismuth-doped fibres and the progress made towards constructing lasers and amplifiers from such fibers are reviewed.
Abstract
Optical fibers with the bismuth show promise for developing efficient fiber lasers and amplifiers in extended bands of near IR region, in particular, through a whole spectral range of 1150–1550 nm. Devices capable of operating in this region are required for applications in advanced optical communications, medicine and astrophysics, among others. In this paper, Evgeny Dianov from the Fiber Optics Research Center of the Russian Academy of Sciences in Moscow reviews the luminescent properties and light-emitting mechanisms of bismuth-doped fibres and the progress made towards constructing lasers and amplifiers from such fibers. In particular, the author describes a laser emitting at 1460 nm with a conversion efficiency of 50%, and an amplifier with a peak gain of 24 dB at 1427 nm, a 3 dB bandwidth of 36 nm and a noise figure of 6 dB.

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Journal ArticleDOI

Recent advances in bismuth activated photonic materials

TL;DR: A critical overview of the current state of the art in bismuth activated photonic materials, their features, advantages and limitations as well as the future research trends is presented in this paper.
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.
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Selectively enhanced red upconversion luminescence and phase/size manipulation via Fe3+ doping in NaYF4:Yb,Er nanocrystals

TL;DR: The results show the remarkable promise of Fe(3+)-codoped NaYF4:Yb,Er nanocrystals as upconverting nanoprobes with high sensitivity and penetrability in deeper tissue for multimodal biomedical imaging.
Journal ArticleDOI

Bismuth-doped optical fibers and fiber lasers for a spectral region of 1600–1800 nm

TL;DR: The existing bismuth-doped lasers, including the result presented in this Letter, can cover O, E, S, C, L, and U telecommunication bands and new data on the nature of the bistuth-related active center were obtained and discussed.
References
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Journal ArticleDOI

Infrared Luminescence from Bismuth-Doped Silica Glass

TL;DR: In this article, a new infrared luminescence from bismuth-doped silica glass was discovered, which is different from those of previously reported Bi2+- or Bi3+doped glasses or crystals.
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CW bismuth fibre laser

TL;DR: In this paper, a new fiber laser based on a bismuth-doped aluminosilicate glass fiber is proposed and fabricated and obtained in the spectral region between 1150 and 1300 nm.
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Bi-doped fiber lasers

TL;DR: In this paper, the results of investigations of Bi-doped fiber lasers covering a wavelength range of 1150 -1550 nm are presented. And the luminescence properties of various Bi-Doped glasses are discussed.
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Discussion on the origin of NIR emission from Bi-doped materials

TL;DR: In this article, the authors reviewed the various arguments and models which have been proposed in this context over the last decade and identified the major open questions, and concluded that the optical bandwidth which is provided by Bi-doped glasses and crystals cannot be achieved by any rare earth (RE) based amplifier, or by the combination of multiple rare-earth (RE)-doped devices.
Journal ArticleDOI

Combined excitation-emission spectroscopy of bismuth active centers in optical fibers

TL;DR: 3-dimensional luminescence spectra (luminescence intensity as a function of the excitation and emission wavelengths) have been obtained for bismuth-doped optical fibers of various compositions in a wide spectral range (450-1700 nm).
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