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IJSTR >> Volume 8 - Issue 8, August 2019 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



The Effect Of Dopant And Glass Composition On Judd-Ofelt Parameters And Radiative Decay Rate Of Erbium Doped Zinc Borate Glasses For Broad Band 1.53 m Emission

[Full Text]

 

AUTHOR(S)

D. Vijaya Sri, S. Hima Bindu, Ch. Linga Raju

 

KEYWORDS

Erbium doped MZB glasses, FTIR characterization, Optical studies, J-O intensity parameters, Rare earth Luminescence, Decay analysis.

 

ABSTRACT

Erbium doped zinc borate glass system containing constant concentrations of M2+ oxides with the molar percentage of 10MO-(30-x)ZnO-60B2O3-(x)Er2O3 (where M = Ca, Sr & Ba and x=1, 2 & 3 mol %) were synthesized and characterized using various techniques like XRD, FTIR, optical absorption, photo-luminescence and decay curve analysis. The absorption spectra specified the ionic nature of the organized Er3+: MZB glass. The high spectral intensity values () for the transitions 4I15/2→2H11/2 and 4I15/2→4G11/2 reveal the high site asymmetry around Er3+ ions. Broad & intense 1.53 μm infrared fluorescence for the transition 4I13/2→4I15/2 is observed at 379 nm. The green emissions in photo-luminescence spectra for 4I13/2→4I15/2 transition indicate strong quenching. The values of bandwidth (292 nm), stimulated cross section (5.3 cm2) and lifetime (1.65 ms) along with broad emission of 4I13/2 level in Er3+: MZB glasses suggest the present prepared glass system be potential beneficial candidate for high gain broad band amplifiers in WDM systems.

 

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