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Optical study on Er-Yb Co-doped boro-tellurite glasses for optical amplifiers

B. VASUDEVAN1,* , A. SIVASUBRAMANIAN2, M. RAMESH BABU3

Affiliation

  1. Department of Electronics and Communication Engineering, St. Joseph’s College of Engineering, Anna University, Chennai-119, Tamil Nadu, India
  2. School of Electronics Engineering,VIT-Chennai,Vandalore-Kelambakkam Road,Tamil Nadu, India.
  3. Department of Electrical and Electronics Engineering, St. Joseph’s College of Engineering, Anna University, Chennai119,Anna University, Tamil Nadu, India.

Abstract

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..

Keywords

Rare earth, Co-doping, Oxide glasses, Gain Co-efficient, Gain Bandwidth, Optical Amplifier.

Submitted at: Feb. 7, 2016
Accepted at: Feb. 10, 2017

Citation

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)