Analysis of EDFA employing distributed absorption filter

Jan Lamperski

doi:10.1117/12.623176

24 September 2005 Analysis of EDFA employing distributed absorption filter

Jan Lamperski

Proceedings Volume 5952, Optical Fibers: Applications; 59521O (2005) https://doi.org/10.1117/12.623176
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

The results of numerical simulations of an original narrow band erbium doped distributed absorption filter fiber amplifier (DAF-EDFA) were demonstrated. Numerical simulations were carried out for both: a standard, single stage, forward pumped reference EDFA without gain equalization and an amplifier containing a distributed absorption filter (DAF). Results of the examination of the EDFA containing a distributed absorption filter were presented. The population inversion for different input signal powers, forward and bacward ASE evolution along the fiber, and the gain and pump efficiency characteristics were compared for the examined DAF-EDFA and reference EDFA amplifiers. The reported approach allows significant reduction of ASE propagation in both directions. As a result, the elimination of the effect of inversion depletion at input EDF section was observed. It was shown that in the proposed approach a significant improvement of gain characteristics and power conversion efficiency can be obtained.

Citation Download Citation

Jan Lamperski "Analysis of EDFA employing distributed absorption filter", Proc. SPIE 5952, Optical Fibers: Applications, 59521O (24 September 2005); https://doi.org/10.1117/12.623176

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