Flat-gain wide-band erbium doped fiber amplifier by combining two difference doped fibers
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 ope...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Rapid publications
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/42828/ http://irep.iium.edu.my/42828/ http://irep.iium.edu.my/42828/1/j01_1215-6157-1-PB.pdf http://irep.iium.edu.my/42828/4/42828_Flat-gain%20wide-band%20erbium%20doped%20fiber_SCOPUS.pdf |
| Summary: | 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 |
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