Modeling high-concentration L-band EDFA at high optical powers based on inversion function | IEEE Journals & Magazine | IEEE Xplore

Modeling high-concentration L-band EDFA at high optical powers based on inversion function


Abstract:

High-concentration erbium-doped fibers used in L-band erbium-doped fiber amplifier (EDFA) are known to experience additional losses due to effects of energy transfer betw...Show More

Abstract:

High-concentration erbium-doped fibers used in L-band erbium-doped fiber amplifier (EDFA) are known to experience additional losses due to effects of energy transfer between Er/sup 3+/ ions and possibly quenchers (e.g., homogeneous and clustering-induced up-conversion, quenching, etc.). These interactions between Er/sup 3+/ ions make modeling of inversion dynamics in L-band EDFA more complicated. We present a modeling approach for high-concentration doped fiber based on lumping of all complex phenomena of energy transfer in EDFA into a function of two variables hereafter referred to as the inversion function. The inversion function is evaluated for high optical powers (which constitutes a typical situation for fiber amplifiers) using a cluster expansion and assuming that upconversion is the leading loss mechanism. The modeling results show a close agreement with the measurement data for various input power conditions and inversion levels.
Published in: IEEE Journal of Selected Topics in Quantum Electronics ( Volume: 8, Issue: 3, May-June 2002)
Page(s): 569 - 574
Date of Publication: 30 June 2002

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