Ex) Article Title, Author, Keywords
New Phys.: Sae Mulli 2019; 69: 107-112
Published online January 31, 2019 https://doi.org/10.3938/NPSM.69.107
Copyright © New Physics: Sae Mulli.
Department of Materials Physics, Dong-A University, Busan 49315, Korea
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
A C-band amplifier for optical communications using 64 wavelength division mutiplexing channels was analyzed for its optimal structural configuration. This amplifier was composed of two erbium-doped fiber amplifiers (EDFAs) for two-staged amplification and a gain-flattened filter. The first EDFA had maximally four pump laser diodes (LDs) for comparison of six different pumping conditions. The length of an erbium-doped fiber in the second EDFA was optimized for the first EDFA's output. This C-band EDFA had a 21 dBm ouput, a flat 19 dB gain in the C-band with a maximum 0.5 dB deviation, and a high noise figure of 7.5 dB.
Keywords: Optical communications, Erbium-doped fiber amplifier, Optical fiber sensor