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Improvement of amplitude and phase margins in an RZ optical receiver using Kerr nonlinearity in normal dispersion fiber

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4 Author(s)
Suzuki, M. ; Dept. of Commun. Eng., Osaka Univ., Japan ; Toda, H. ; Liang, A.H. ; Hasegawa, Akira

We propose a new return-to-zero (RZ) optical receiver to improve the amplitude and phase margins without increasing the intersymbol interference by utilizing Kerr nonlinearity in normal dispersion fiber. We employed this technique to a jitter-limited 10-Gb/s optical soliton transmission experiment at 16000 km in a sliding frequency recirculating loop. The amplitude and phase margins obtained with the proposed method were 67% and 18% wider than that with the conventional RZ receiver using a 7.5-GHz low-pass filter.

Published in:

Photonics Technology Letters, IEEE  (Volume:13 ,  Issue: 11 )