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Proceedings Paper

EDFA gain-flattening based on the cascade of step-changed LPGs
Author(s): Yang Ran; Weiping Liu; Weichong Du; Hongbin Huang; Shun'er Chen
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Paper Abstract

By analyzed the two-step cascaded step-changed LPGs which have been already used as band filters for flattening the gain of EDFAs, an improved method of introducing three or more steps cascade has been advanced in order to optimize the transmission spectra of the filters. The calculation and simulation of the cascaded LPGs' transmission spectra are given. The simulation results show that the transmission spectral profile can be tailored into an adoptive shape and simultaneously the effective bandwidth would become wider by adjusting the two parameters, the length and the index perturbations of each segment in cascade. This method is demonstrated to be an effective way to flatten the gains profile of EDFAs.

Paper Details

Date Published: 11 November 2008
PDF: 8 pages
Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71340B (11 November 2008); doi: 10.1117/12.802609
Show Author Affiliations
Yang Ran, Jinan Univ. (China)
Weiping Liu, Jinan Univ. (China)
Weichong Du, Institute of Industry Technology (China)
Hongbin Huang, Jinan Univ. (China)
Shun'er Chen, Jinan Univ. (China)

Published in SPIE Proceedings Vol. 7134:
Passive Components and Fiber-based Devices V
Ming-Jun Li; Ping Shum; Ian H. White; Xingkun Wu, Editor(s)

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