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Opt Express. 2013 Feb 11;21(3):2862-8. doi: 10.1364/OE.21.002862.

Simultaneous regeneration of two 160 Gbit/s WDM channels in a single highly nonlinear fiber.

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School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China.


We experimentally demonstrate simultaneous all-optical regeneration of two 160-Gbit/s wavelength-division multiplexed (WDM) channels in a single highly nonlinear fiber (HNLF). The multi-channel regeneration performance is confirmed by bit-error rate (BER) measurements. The receiver powers at a BER of 10(-9) are improved by about 4.9 dB and 2.1 dB for the two channels, respectively. The BER performance is not degraded by the presence of a second channel. Mitigation of the inter-channel nonlinearities is achieved through bidirectional propagation.

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