Finding Ge-Al-doped fiber parameters for modeling erbium-doped fiber amplifier operation

John A. Ging; Ronan F. O'Dowd

doi:10.1117/12.464204

27 August 2003 Finding Ge-Al-doped fiber parameters for modeling erbium-doped fiber amplifier operation

John A. Ging, Ronan F. O'Dowd

Proceedings Volume 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications; (2003) https://doi.org/10.1117/12.464204
Event: OPTO Ireland, 2002, Galway, Ireland

Abstract

The behaviour of Erbium-Doped Fibre Amplifiers (EDFA) is investigated as a function of basic fibre constituents and length in order to provide sufficient parameters for any modelling of its gain or noise profiles. The efficiency of the amplifier is found to be strongly dependent on the erbium ion concentration, the excited-state lifetime, the overlap integral of the erbium with the optical mode and the absorption and emission cross-sections. For convenience, these factors can then be lumped into two fibre specific parameters, namely the intrinsic saturation, PkIS, and absorption coefficients, ak. The topics addressed in this paper include the calculation of these parameters in order to provide a model for the gain or noise in an EDFA operating in the steady-state regime. Mechanisms that may deplete the gain achievable are identified and it is described how some of these might be overcome by finding the optimum amplifier length to obtain maximum gain. This paper presents comprehensive analysis to be coupled with available numerical and implicit analytical methods and will enable a systematic design and performance study of the EDFA.

Citation Download Citation

John A. Ging and Ronan F. O'Dowd "Finding Ge-Al-doped fiber parameters for modeling erbium-doped fiber amplifier operation", Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); https://doi.org/10.1117/12.464204

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