Efficient and low-noise gain-flattened double-pass L-band erbium-doped fiber amplifier

Harun, Sulaiman Wadi and Ahmad, Harith (2003) Efficient and low-noise gain-flattened double-pass L-band erbium-doped fiber amplifier. Microwave and Optical Technology Letters, 40 (2). pp. 112-114. ISSN 0895-2477

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Official URL: http://dx.doi.org/10.1002/mop.11300

Abstract

A new double-pass long-wavelength-band erbium-doped fiber amplifier with enhanced noise figure characteristics is demonstrated by adding a short length of forward pumped erbium-doped fiber (EDF) in front of the double-pass amplifier. By adding 7 m of EDF, the amplifier achieves a flat-gain output at about 34.2 dB with a gain variation of less than 1.3 dB at the wavelength region 1568-1598 nm. The corresponding noise figures vary from 5.0 to 5.7 dB, which is improved by 1.7 to 7.5 dB over the flat-gain region, as compared to that of the conventional double-pass amplifier. This new amplifier with high gain and low noise figure can be useful as an inline amplifier in a wavelength division multiplexing transmission system.

Item Type: Article
Uncontrolled Keywords: Double-pass EDFA; Erbium-doped fibre amplifier; L-band; Noise-figure improvement; Optical communication
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 11 Oct 2018 08:28
Last Modified: 11 Oct 2018 08:28
URI: http://eprints.um.edu.my/id/eprint/19648

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