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  • Vol. 27, Iss. 18 — Sep. 15, 2002
  • pp: 1619–1621

Postnonlinearity compensation with data-driven phase modulators in phase-shift keying transmission

Chris Xu and Xiang Liu  »View Author Affiliations


Optics Letters, Vol. 27, Issue 18, pp. 1619-1621 (2002)
http://dx.doi.org/10.1364/OL.27.001619


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Abstract

A novel scheme for postnonlinearity compensation is proposed to reduce the phase jitter in phase-shift keying transmission. A phase modulator is used to modulate the phase of the data pulses in front of the receiver. The magnitude of the phase modulation is proportional to the detected pulse intensity, and the sign is opposite to that of the nonlinear phase shift caused by self-phase modulation. Thus, the nonlinear phase noise induced by amplitude fluctuation and self-phase modulation is partially compensated for. We show by numerical simulations that a differential phase-shift keying dispersion-managed soliton system at 10Gbits/s with such postnonlinearity compensation can provide greater than 3dB of improvement in ultralong-haul dense wavelength-division multiplexing transmissions.

© 2002 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics

Citation
Chris Xu and Xiang Liu, "Postnonlinearity compensation with data-driven phase modulators in phase-shift keying transmission," Opt. Lett. 27, 1619-1621 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-18-1619


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References

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  2. C. Xu, X. Liu, and X. Wei, have submitted a paper titled “Ultra-long haul DWDM transmission with DPSK dispersion managed soliton,” to be presented at the 28th European Conference on Optical Communication (ECOC 2002).
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