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Proceedings Paper

L-band EDFA efficiency enhancement and dynamic range extension by C-band laser injection
Author(s): Yanbin Zhang; Xiaoming Liu; Jiangde Peng; Wei Zhang
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Paper Abstract

In a L-band EDFA, not only the pump power conversion efficiency (PCE) can be improved but also the gain can be clamped by C-band laser injection. On one hand, the injected C-band laser compresses the possible leakage of amplified spontaneous emission (ASE); while on the other hand, the maximum inversion level is limited by the high emission coefficient when the amplified C-Band laser light becomes the dominant pump source, which means that the maximum signal gain is limited so that the gain can be clamped. The numerical and experimental results show that the increment of PCE requires only a certain injected light power, but the clamped gain and the dynamic input power range is dependent on both of the injected wavelength and power.

Paper Details

Date Published: 17 October 2001
PDF: 6 pages
Proc. SPIE 4581, Passive Components and Transmission Systems, (17 October 2001); doi: 10.1117/12.445033
Show Author Affiliations
Yanbin Zhang, Tsinghua Univ. (China)
Xiaoming Liu, Tsinghua Univ. (China)
Jiangde Peng, Tsinghua Univ. (China)
Wei Zhang, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4581:
Passive Components and Transmission Systems
Chongcheng Fan; Norman S. Kwong, Editor(s)

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