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Pulsewidth-tunable CS-RZ signal format with better tolerance to dispersion and nonlinear degradation in optical transmission system

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6 Author(s)
Yi Dong ; Dept. of Electron. Eng., Tsinghua Univ., Beijing, China ; Zhihong Li ; Jinyu Mo ; Yixin Wang
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A novel carrier-suppressed return-to-zero (CS-RZ) modulation format with tunable pulsewidth was proposed. A 10-Gb/s dispersion management transmission over a 320-km standard single-mode fiber was carried out to evaluate the performance of the novel modulation format. It was confirmed by experiment that the novel CS-RZ with short pulse is more tolerant to dispersion and nonlinearity than conventional CS-RZ format. Furthermore, the best transmission performance can be achieved by the novel CS-RZ format with 45% duty cycle, which has the narrowest optical spectrum width.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 5 )