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Dynamic spectral equalizer using free-space dispersive optics combined with a polymer-dispersed liquid-crystal spatial light attenuator

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4 Author(s)
Loukina, T. ; Opt. Dept., Ecole Nat. Superieure des Telecommun., Brest, France ; Chevallier, R. ; de Bourgrenet de la Tocnaye, J.L. ; Barge, M.

We describe the principle of a dynamic spectral equalizer (DSE), combining high dispersive capabilities of free-space wavelength-demultiplexing optics with a polarization independent polymer-dispersed liquid-crystal spatial light modulator (SLM), to provide wide-spectral-range quasi-continuous variable-gain attenuation and flattening. Preliminary results on C band are presented and discussed, as well as possible extensions toward C + L bands and metropolitan network functionalities.

Published in:

Lightwave Technology, Journal of  (Volume:21 ,  Issue: 9 )

Date of Publication:

Sept. 2003

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