Gain-tilt in erbium-doped fiber amplifiers, and its consequences for distortion in AM systems

Kristen Dybdal; S. Lomholt Hansen; P. Thorsen; Svend Bank Andreasen

doi:10.1117/12.168601

15 February 1994 Gain tilt in erbium-doped fiber amplifiers and its consequences for distortion in AM systems

Kristen Dybdal, S. Lomholt Hansen, P. Thorsen, Svend Bank Andreasen

Proceedings Volume 2073, Fiber Laser Sources and Amplifiers V; (1994) https://doi.org/10.1117/12.168601
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

Distortions induced by erbium doped fiber amplifiers on optical AM signals are shown, experimentally and theoretically, to originate from the so called locked-inversion gain tilt of the amplifier. The locked-inversion gain tilt may be measured by simple methods, or it may be calculated from a standard steady-state numerical model. It is demonstrated by experiment and calculation that the gain-tilt, and hence the harmonic distortion, may be reduced to acceptable levels by proper design of the fiber amplifier without the need for separate equalization.

Citation Download Citation

Kristen Dybdal, S. Lomholt Hansen, P. Thorsen, and Svend Bank Andreasen "Gain tilt in erbium-doped fiber amplifiers and its consequences for distortion in AM systems", Proc. SPIE 2073, Fiber Laser Sources and Amplifiers V, (15 February 1994); https://doi.org/10.1117/12.168601

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