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Flat-gain wide-band erbium doped fiber amplifier by combining two difference doped fibers

Hamida, Belal Ahmed and Azooz, S. M and Jasim, Ali Abdulhadi and Eltaif, Tawfig Ahmad A. and Ahmad, Harith and Khan, Sheroz and Harun, Sulaiman Wadi (2015) Flat-gain wide-band erbium doped fiber amplifier by combining two difference doped fibers. Journal of the European Optical Society, 10. pp. 15015-1. ISSN 1990-2573

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A new erbium-doped fibre amplifier (EDFA) is demonstrated using a combination of newly developed Erbium Zirconia co-doped fiber (Zr-EDF) and the commercial silica-based Erbium-doped fiber (Si-EDF) as the gain medium. Both fibers have a very high concentration of erbium ion. A compact amplifier operating in C-band region is firstly reported using a double-pass configuration. It is shown that average gains of the proposed Zr-EDF amplifier are obtained at approximately 18 dB with a gain variation of +-2 dB within C-band region. A flat-gain and wide band operation is achieved by configuring the amplifier in two stages comprising a 2 m long Zr-EDF and 9 m long Si-EDF optimised for C- and L-band operations, respectively, in a double-pass parallel configuration. A chirp fibre Bragg grating (CFBG) is used in both stages to ensure double propagation of the signal and thus to increase the attainable gain in both C- and L-band regions. At an input signal power of 0 dBm, a flat gain of 15 dB is achieved with a gain variation of less than 0.5 dB within a wide wavelength range from 1530 to 1605 nm. The corresponding noise figure varies from 6.2 to 10.8 dB within this wavelength region

Item Type: Article (Journal)
Additional Information: 7222/42828
Uncontrolled Keywords: Double-pass amplifier, wideband amplifier, zirconia-based erbium-doped fiber
Subjects: T Technology > T Technology (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User: dr Sheroz Khan
Date Deposited: 08 May 2015 09:51
Last Modified: 07 Nov 2017 14:52
URI: http://irep.iium.edu.my/id/eprint/42828

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