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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 14 — Jul. 15, 2004
  • pp: 1599–1601

Relation between vestigial-sideband filtering and π/2 progressive phase shift

Xing Wei and Juerg Leuthold  »View Author Affiliations


Optics Letters, Vol. 29, Issue 14, pp. 1599-1601 (2004)
http://dx.doi.org/10.1364/OL.29.001599


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Abstract

We show that a Gaussian-shaped vestigial-sideband (VSB) return-to-zero (RZ) on–off-keying (OOK) optical signal is essentially a RZ OOK signal with π/2 progressive phase shift. The reduced intersymbol interference of the VSB signal can be explained as a destructive interference effect. We experimentally demonstrate a method for generating an effective 40-Gbit/s VSB signal without relying on the detuning of an optical filter.

© 2004 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation
(060.5060) Fiber optics and optical communications : Phase modulation

Citation
Xing Wei and Juerg Leuthold, "Relation between vestigial-sideband filtering and π/2 progressive phase shift," Opt. Lett. 29, 1599-1601 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-14-1599


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References

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