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Proceedings Paper

A novel method to improve noise figure for double-pass L-band EDFA
Author(s): Hao Zhang; Ling Yu; Yange Liu; Chao Wang; Lihui Liu; Lingyun Xiong; Shuzhong Yuan; Xiaoyi Dong
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Paper Abstract

In this paper, we present a noise figure improved double-pass L-band EDFA based on HiBi fiber loop mirror as the ASE suppressor. By utilizing a HiBi fiber loop mirror as the wavelength-dependent reflector, the ASE light has been weakened to a large extend, which increases the inversion ion population at the input end of erbium-doped fiber. Therefore, the noise figure of this double-pass EDFA has been much improved. Compared with that of the conventional double-pass structure based on 3dB fiber loop mirror, the NF of our novel configuration is reduced by 2.06~5.33dB for the ten sampled signal wavelength (1580.84nm~1588.48nm).

Paper Details

Date Published: 10 January 2005
PDF: 4 pages
Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); doi: 10.1117/12.569517
Show Author Affiliations
Hao Zhang, Nankai Univ. (China)
Ling Yu, Nankai Univ. (China)
Yange Liu, Nankai Univ. (China)
Chao Wang, Nankai Univ. (China)
Lihui Liu, Nankai Univ. (China)
Lingyun Xiong, Nankai Univ. (China)
Shuzhong Yuan, Nankai Univ. (China)
Xiaoyi Dong, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 5623:
Passive Components and Fiber-based Devices
Yan Sun; Shuisheng Jian; Sang Bae Lee; Katsunari Okamoto, Editor(s)

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