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40-Gb/s x 4-channel all-optical multichannel limiter utilizing spectrally filtered optical solitons

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5 Author(s)
Ohara, T. ; NTT Network Innovation Labs., NTT Corp., Kanagawa, Japan ; Takara, H. ; Hirano, A. ; Mori, K.
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We propose a novel all-optical multichannel limiter that uses spectrally filtered optical solitons. The periodic nonlinear optical fiber described herein can suppress the interchannel interaction caused by four-wave mixing. By applying this all-optical multichannel limiter to a 40-Gb/s /spl times/ 4-channel wavelength-division-multiplexing signal, minimum received optical powers at the bit-error rate of 10/sup -9/ were improved by more than 2 dB in all channels.

Published in:

Photonics Technology Letters, IEEE  (Volume:15 ,  Issue: 5 )