Gaussian-like spectrum equalization using an all-fiber lattice filter with symmetric feedback structure

We present an all-fiber filter with symmetric forward and feedback lattice structures. Using the proposed filter, Gaussian-like spectra can be equalized in the maximally flat sense while the output power is maximized. As an illustrative example, the proposed filter is designed to flatten the output...

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Bibliographic Details
Published in:Optical Engineering 2005-05, Vol.44 (5), p.050504-050502
Main Authors: Dong, Zhao Gang, Zhang, Ying, Wang, Qi Jie, Soh, Yeng Chai
Format: Article
Language:English
Subjects:
broadband light sources
fiber optics
filters
spectrum equalization
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Summary:We present an all-fiber filter with symmetric forward and feedback lattice structures. Using the proposed filter, Gaussian-like spectra can be equalized in the maximally flat sense while the output power is maximized. As an illustrative example, the proposed filter is designed to flatten the output spectrum of a superluminescence light-emitting Diode (SLED). Compared to existing filters, the proposed filter achieved better performance in experiments. ©
ISSN:0091-3286
1560-2303
DOI:10.1117/1.1907188