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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 19, Iss. 3 — Mar. 1, 2001
  • pp: 345–

Improved Gain Performance In Yb3+-Sensitized Er3+ -Doped Alumina (Al2O 3) Channel Optical Waveguide Amplifiers

C. E. Chryssou, F. Di Pasquale, and C. W. Pitt

Journal of Lightwave Technology, Vol. 19, Issue 3, pp. 345- (2001)


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Abstract

Small-signal amplification in short, Yb3+-sensitized, Er3+-doped alumina (Al2O3) channel optical waveguides with high Er3+ concentrations is analyzed. Taking into account uniform up-conversion, excited state absorption (ESA) from the Er3+ metastable level (4I13/2), and Yb3+ -> Er3+ energy transfer by cross relaxation, the obtainable gain improvements compared to Yb3+-free Er3+-doped Al2O3 optical waveguides are investigated. The amplifier model is based on propagation and population rate equations and is solved numerically by combining finite elements and the Runge-Kutta algorithm. The analysis predicts that 5-cm long Yb3+/Er3+ co-doped Al2O3 waveguides show 13-dB net signal gain for 100 mW pump power at p = 980nm.

[IEEE ]

Citation
C. E. Chryssou, F. Di Pasquale, and C. W. Pitt, "Improved Gain Performance In Yb3+-Sensitized Er3+ -Doped Alumina (Al2O 3) Channel Optical Waveguide Amplifiers," J. Lightwave Technol. 19, 345- (2001)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-19-3-345

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