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Conference Paper/Proceeding/Abstract 798 views 182 downloads

Gain control dynamics of thulium-doped fibre amplifier at 2 μm

M. A. Khamis, K. Ennser, Karin Ennser

SPIE Photonic West: Optical Components and Materials XIII, Volume: 9744, Start page: 974419

Swansea University Author: Karin Ennser

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DOI (Published version): 10.1117/12.2212386

Abstract

This work is novel in that it explains the modeling and simulation of a thulium-doped fiber amplifier (TDFA) in a reconfigurable wavelength division multiplexing communication system operating at 2 μm. We use the optical gain-clamping technique in order to control gain amplification and reduce delet...

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Published in: SPIE Photonic West: Optical Components and Materials XIII
ISSN: 0277-786X
Published: USA 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa28888
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Abstract: This work is novel in that it explains the modeling and simulation of a thulium-doped fiber amplifier (TDFA) in a reconfigurable wavelength division multiplexing communication system operating at 2 μm. We use the optical gain-clamping technique in order to control gain amplification and reduce deleterious channel power fluctuations resulting from input power variation at the TDFA input. The investigated system consists of 12 channels with -4 dBm total input power. Simulation results show that approximately 1.5dB power excursion is produced after dropping 11 channels in unclamped-gain amplifier, and only 0.005 dB in a clamped-gain amplifier. Additionally, a clamped configuration reduces the power excursion from 4.2 dB to under 0.08 dB, after adding 11 channels to the transmission system. Hence, optical gain clamping is a simple and robust technique for controlling the power dynamic excursions in amplifiers at 2 μm.
Keywords: optical amplifier, gain control, thulium fibre
College: Faculty of Science and Engineering
Start Page: 974419