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Proceedings Paper

Low-noise-figure gain-clamped L-band double-pass erbium-doped fiber ring lasing amplifier with an interleaver
Author(s): Jun Hua Ji; Li Zhan; Lilin Yi; C. C. Tang; Qinghao Ye; Yuxing Xia
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Paper Abstract

A new design of all-optical gain-clamped L-band double-pass (DP) erbium-doped fiber amplifier (EDFA) has been demonstrated, in which, the input port and the odd-channel output port of interleaver are connected with a DP configuration EDF through a circulator to form lasing ring cavity for clamping gain, and the even port is utilized to export the amplified signals. A low NF can be achieved because the lasing co-propagates with the signal, and the lasing is exported separately from the amplified signal thanks to interleaver. Meanwhile, the fiber Bragg grating incorporated in DP configuration suppresses the backward ASE generation, and therefore improves efficiently the gain and lowers the NF. In such a way, the clamped gain of 16.3dB with a variation below 0.2dB and the noise figure below 5dB is achieved on the new L-band gain-clamped EDFA.

Paper Details

Date Published: 10 January 2005
PDF: 11 pages
Proc. SPIE 5623, Passive Components and Fiber-based Devices, (10 January 2005); doi: 10.1117/12.572205
Show Author Affiliations
Jun Hua Ji, Shanghai Jiao Tong Univ. (China)
Li Zhan, Shanghai Jiao Tong Univ. (China)
Lilin Yi, Shanghai Jiao Tong Univ. (China)
C. C. Tang, Shanghai Jiao Tong Univ. (China)
Qinghao Ye, Shanghai Jiao Tong Univ. (China)
Yuxing Xia, Shanghai Jiao Tong 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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