Reddy, Pinninty Harshavardhan and Das, Shyamal and Dutta, Debjit and Dhar, Anirban and Kir'yanov, Alexander V and Pal, Mrinmay and Bhadra, Shyamal Kumar and Paul, Mukul Chandra (2018) Luminescent Properties and Optical Amplification of Erbium-Doped Nano-Engineered Scandium-Phospho-Yttria-Alumina-Silica Glass Based Optical Fiber. Physica Status Solidi A-Appications and Materials Science, 215 (7). Article No-1700615. ISSN 0031-8965

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Abstract

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 4.35dB, and provides broadband optical flat gain with an average value of 38.675dB, varied by less than +/- 0. 7dB spanning over a broad wavelength region of 1530-1590nm 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.

Item Type:	Article
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	03 Sep 2018 12:07
Last Modified:	03 Sep 2018 12:07
URI:	http://cgcri.csircentral.net/id/eprint/4296

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