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Optical Engineering

Improvement in characteristics of a distributed Raman fiber amplifier by using signal-pump double-pass scheme
Author(s): Liang Dou; Ming Li; Zhengbin Li; Anshi Xu; Chin-Yin David Lan; Shien-Kuei Liaw
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Paper Abstract

We have proposed and demonstrated a novel signal-pump double-pass distributed Raman fiber amplifier (RFA) by using a three-port optical circulator as a reflective mirror. This unique RFA architecture not only doubles the amount of dispersion compensation, but also enhances the pumping efficiency. In comparison with the conventional signal-pump single-pass scheme, the proposed RFA has a 2.0-dB gain improvement and a 3.7-dB equivalent noise figure suppression, measured at 1598 nm. The proposed RFA may find wide applications in long-haul transmission and optical networks, where dispersion compensation is of great concern.

Paper Details

Date Published: 1 September 2006
PDF: 4 pages
Opt. Eng. 45(9) 094201 doi: 10.1117/1.2354472
Published in: Optical Engineering Volume 45, Issue 9
Show Author Affiliations
Liang Dou, Peking Univ. (China)
Ming Li, Peking Univ. (China)
Zhengbin Li, Peking Univ. (China)
Anshi Xu, Peking Univ. (China)
Chin-Yin David Lan, National Taiwan Univ. of Science and Technology (Taiwan)
Shien-Kuei Liaw, National Taiwan Univ. of Science and Technology (Taiwan)

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