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37.2 dB small-signal gain from Er/Yb Co-doped fiber amplifier with 20 mW pump power

An efficient erbium-ytterbium-doped fiber amplifier (EYDFA) is demonstrated by forward and backward pumping a 3 m erbium/ytterbium co-doped fibers (EYDF) in single- and double-pass configurations using a 20 mW pump. At the input signal wavelength of 1536 nm, the forward- and backward-pumped double-p...

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Bibliographic Details
Main Authors: Harun, Sulaiman Wadi, Abdul-Rashid, H.A., Muhd-Yassin, S.Z., Abd-Rahman, M.K., Jayapalan, Kanesh Kumar, Ahmad, Harith
Format: Article
Published: Elsevier 2008
Subjects:
Q Science (General)
QC Physics
TA Engineering (General). Civil engineering (General)
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.um.edu.my/19705/
https://doi.org/10.1016/j.optlastec.2007.03.010
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Summary:An efficient erbium-ytterbium-doped fiber amplifier (EYDFA) is demonstrated by forward and backward pumping a 3 m erbium/ytterbium co-doped fibers (EYDF) in single- and double-pass configurations using a 20 mW pump. At the input signal wavelength of 1536 nm, the forward- and backward-pumped double-pass amplifiers achieved a maximum low-signal gain of 37.2 and 28.6 dB and a corresponding noise figure of 5.4 and 10.8 dB, respectively. Whereas, the forward- and backward-pumped single-pass amplifiers (at the same wavelength) achieved a maximum low-signal gain of 20.0 and 22.2 dB and a corresponding noise figure of 4.6 and 10.3 dB, respectively. The double-pass design offers an economical solution to high-efficiency and high-gain optical amplifiers.

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