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B. VASUDEVAN1,* , A. SIVASUBRAMANIAN2, M. RAMESH BABU3
- Department of Electronics and Communication Engineering, St. Joseph’s College of Engineering, Anna University, Chennai-119, Tamil Nadu, India
- School of Electronics Engineering,VIT-Chennai,Vandalore-Kelambakkam Road,Tamil Nadu, India.
- Department of Electrical and Electronics Engineering, St. Joseph’s College of Engineering, Anna University, Chennai119,Anna University, Tamil Nadu, India.
The Er-Yb co-doped boro-tellurite glasses with the chemical composition (40−x−y)TeO2+20H3BO3+15K2CO3+15SrCO3+ +10ZnO+xEr2O3 +yYb2O3 (where x = 1, y = 0, 0.5, 1 and 2 in wt%) have been prepared and their luminescence properties are studied through absorption and luminescence spectral analysis. Judd−Ofelt (JO) intensity parameters are estimated through the optical absorption spectral measurements. Using McCumbar theory the absorption and emission cross-section values for the 4 I13/2→ 4 I15/2 (1.531μm) transition have been calculated. The high value of gain coefficient and gain band width indicates that the prepared glasses are promising materials for broadband optical amplifier applications..
Rare earth, Co-doping, Oxide glasses, Gain Co-efficient, Gain Bandwidth, Optical Amplifier.
Submitted at: Feb. 7, 2016
Accepted at: Feb. 10, 2017
B. VASUDEVAN, A. SIVASUBRAMANIAN, M. RAMESH BABU, Optical study on Er-Yb Co-doped boro-tellurite glasses for optical amplifiers, Journal of Optoelectronics and Advanced Materials Vol. 19, Iss. 1-2, pp. 11-15 (2017)
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