Ultra-Broadband Optical Transmission using Bi/Er Codoped Glass Fiber: Key Design Issue and a Survey

Synthia, Mojaiana; Ali, Md. Shipon

doi:10.14257/ijfgcn.2014.7.3.15

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…The quest for increasing transmission capacity of optical communication networks has stimulated a search for new approaches. One of the possible ways is the widening of a spectral region used for data transmission in modern systems based on DWDM technology [1][2][3]. At present, high-capacity optical communication systems use the narrow spectral region of 1530-1610 nm, determined by the gain bandwidth of erbium-doped fiber amplifiers (EDFAs).…”

Section: Introductionmentioning

confidence: 99%

Wideband bismuth- and erbium-codoped optical fiber amplifier for C + L + U-telecommunication band

et al. 2017

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Bi-and Er-codoped germanosilicate optical fibers have been fabricated and studied as a potential gain medium for fiber-based devices operating in the near infrared region. A broadband optical amplifier operating in the wavelength range from 1515 to 1775 nm has been realized using the developed bismuth-and erbium-codoped fibers. The 15 dB small-signal gain band covers 260 nm when pumped by a laser diode at 1460 nm with an output power of 350 mW.

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Section: Introductionmentioning

confidence: 99%

Wideband bismuth- and erbium-codoped optical fiber amplifier for C + L + U-telecommunication band

et al. 2017

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Influence of Al/Er ratio on the optical properties and structures of Er3+/ Al3+ co-doped silica glasses

Jiao

Guo

Wang

et al. 2021

Journal of Applied Physics

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In this study, Er3+/Al3+ co-doped silica glasses with various Al/Er ratios ranging from 0 to 200 and a constant Er2O3 amount were prepared using the sol-gel method combined with high-temperature vacuum sintering. The absorption, emission spectra, and fluorescence lifetime of Er3+ ions were recorded and the absorption and emission cross sections were calculated. Using Raman, 27Al and 29Si magic angle spinning nuclear magnetic resonance (MAS-NMR), 27Al triple-quantum (TQ)-MAS-NMR, and electron paramagnetic resonance (EPR) spectroscopies, the physical and optical properties were correlated with the glass structural modifications due to the Al/Er ratio change. With the increase in the Al/Er ratio, the content of Al3+ ions around the Er3+ ions gradually increased. Meanwhile, the AlO5 and AlO6 polyhedrons increased at the expense of the AlO4 and SiO4 tetrahedrons, which resulted in an improved symmetry and better ionic Er–O bonds. These structural changes led to the site-to-site variations in the Er3+ local environment and the changes in the ligand field strength of the Er–O bonds. This, in turn, resulted in the inhomogeneous broadening of the absorption and emission spectra, with a blue shift of both absorption and emission peaks and a decrease in both absorption and emission at 1.53 μm. With the increase in Al/Er ratio, the full width at half maximum (FWHM) of the emission increased from 27.2 to 54.3 nm. The FWHM × emission cross section (σemi) parameter for evaluating broadband amplification behavior was 30.1 × 10−20 cm2 · nm. This work reveals the close relationship between the glass structure and the spectroscopic properties of Er3+ ions and provides an important reference for the design of broadband amplifier materials in the field of optical communication.

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Ultra-Broadband Optical Transmission using Bi/Er Codoped Glass Fiber: Key Design Issue and a Survey

Abstract: Abstract

Cited by 2 publications

References 20 publications

Wideband bismuth- and erbium-codoped optical fiber amplifier for C + L + U-telecommunication band

Wideband bismuth- and erbium-codoped optical fiber amplifier for C + L + U-telecommunication band

Influence of Al/Er ratio on the optical properties and structures of Er3+/ Al3+ co-doped silica glasses

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