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1050-km WDM transmission of 8×10.709Gb/s DPSK signal using cascaded in-line semiconductor optical amplifier

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5 Author(s)
Zhihong Li ; Inst. for Inforcom Res., Singapore, Singapore ; Yi Dong ; Jinyu Mo ; Yixin Wang
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We have performed eight-channel wavelength-division-multiplexing transmission over 1050-km single-mode fiber using cascaded in-line semiconductor optical amplifier and differential phase-shift keying modulation format for the first time; more than 6 dB of power margin was achieved over forward-error correction threshold. Factors that affect the transmission performance were discussed. It was found that four-wave mixing is the main factor that limits the maximum transmission distance. Larger capacity distance product can be realized by further optimizing the configuration of transmission link.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 7 )