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Optical Engineering

Gain-enhanced double-pass long-wavelength-band erbium-doped fiber amplifier using backward pumping
Author(s): Liang Xing; Li Zhan; Lilin Yi; Yuxing Xia
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Paper Abstract

We propose and demonstrate a novel high-gain-efficiency long-wavelength band (L-band) erbium-doped fiber amplifier with a double-pass backward-pump configuration, in which the strong backward C-band amplified spontaneous emission is effectively utilized. The L-band gain is greatly enhanced in comparison with the copumped configuration. Without using any excessive components, the new configuration can provide the same gain as the conventional configuration, but only using 40% pump power. Meanwhile, the noise figure is also effectively improved under the low pump power.

Paper Details

Date Published: 1 December 2007
PDF: 4 pages
Opt. Eng. 46(12) 124203 doi: 10.1117/1.2821422
Published in: Optical Engineering Volume 46, Issue 12
Show Author Affiliations
Liang Xing, Shanghai Jiao Tong Univ. (China)
Li Zhan, Shanghai Jiao Tong Univ. (China)
Lilin Yi, Ecole Nationale Supérieure des Télécommunications (China)
Yuxing Xia, Shanghai Jiao Tong Univ. (China)

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