Wideband and flat-gain amplifier based on high concentration erbium-doped fibres in parallel double-pass configuration

Hamida, Belal Ahmed and Cheng, X.S. and Harun , Sulaiman Wadi and Naji, Ahmed Wathik and Arof, Hamzah and Al-Khateeb, Wajdi Fawzi Mohammed and Khan, Sheroz and Ahmad, Harith (2012) Wideband and flat-gain amplifier based on high concentration erbium-doped fibres in parallel double-pass configuration. Quantum Electronics, 42 (3). pp. 241-243. ISSN 1468-4799 (O), 1063-7818 (P)

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Abstract

A wideband and flat gain erbium-doped fibre amplifier (EDFA) is demonstrated using a hybrid gain medium of a zirconiabased erbium-doped fibre (Zr-EDF) and a high concentration erbium-doped fibre (EDF). The amplifier has two stages comprising a 2-m-long ZEDF and 9-m-long 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:	7222/41887
Uncontrolled Keywords:	Double pass; Double pass configuration; Erbium doped; Erbium-doped fibre amplifiers; Flat-gain; Gain medium; Gain variations; High concentration; Input signal power; Parallel configuration; Two stage; Wavelength ranges; Wavelength regions; Wide band amplifiers; Wide-band
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:	Belal Ahmed Hamida
Date Deposited:	20 Mar 2015 16:02
Last Modified:	20 Mar 2015 16:02
URI:	http://irep.iium.edu.my/id/eprint/41887

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