EDFA gain-flattening based on the cascade of step-changed LPGs

Yang Ran; Weiping Liu; Weichong Du; Hongbin Huang; Shun'er Chen

doi:10.1117/12.802609

11 November 2008 EDFA gain-flattening based on the cascade of step-changed LPGs

Yang Ran, Weiping Liu, Weichong Du, Hongbin Huang, Shun'er Chen

Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 71340B (2008) https://doi.org/10.1117/12.802609
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

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.

Citation Download Citation

Yang Ran, Weiping Liu, Weichong Du, Hongbin Huang, and Shun'er Chen "EDFA gain-flattening based on the cascade of step-changed LPGs", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71340B (11 November 2008); https://doi.org/10.1117/12.802609

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