Multi-carrier and m-QAM modulation based on integrated single side band lightwave source

Vergnol, E.; Tanguy, Daniel; Cadiou, J.F.; Carenco, A.; Penard, E.

doi:10.1109/ofc.1999.767845

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…Both the opti- cal filtering scheme and OSSB+ C techniques suffer a 6 dB electrical loss since half of the optical sideband power is removed compared with the optical double-sideband case. Another approach to generating OSSB+ C modulation is via two electroabsorption modulators (EAMs) [38] where the optical signal is first split into two paths with a 90°phase shift. These signals are input into the two EAMs, which are driven by the same electrical modulating signal with one delayed by a quarter of the signal period.…”

Section: A1 Dispersion Effect Mitigation Techniquesmentioning

confidence: 99%

Mitigation strategy for transmission impairments in millimeter-wave radio-over-fiber networks [Invited]

Lim¹,

Nirmalathas²,

Bakaul

et al. 2009

J. Opt. Netw.

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Hybrid fiber-wireless networks for fixed wireless access operating in the millimeter-wave (mm-wave) frequency region have been actively pursued to provide ultrahigh bandwidth for untethered connectivity. Moving the radio operating frequency into the mm-wave region overcomes the spectral congestion in the lower microwave region and is also capable of providing high-capacity broadband wireless services in a picocellular or microcellular architecture. Optical fiber backhaul provides the broadband interconnectivity between a centralized location and a large number of high-throughput antenna base stations necessary in such an architecture. The transportation of mm-wave wireless signals within the hybrid network is subject to numerous impairments ranging from low conversion efficiency to fiber chromatic dispersion and also to signal degradation due to nonlinearity along the link. One of the major technical challenges in implementing these networks lies in the mitigation of these impairments that the wireless signals experience while traversing the links. In this paper, we present an overview of the different techniques and schemes to overcome some of the impairments for transporting mm-wave signals over optical fibers.

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Section: A1 Dispersion Effect Mitigation Techniquesmentioning

confidence: 99%

Mitigation strategy for transmission impairments in millimeter-wave radio-over-fiber networks [Invited]

Lim¹,

Nirmalathas²,

Bakaul

et al. 2009

J. Opt. Netw.

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show abstract

“…We already reported 38 GHz radio carrier tests as well as transmission of 64-QAM MPEG-2 encoded signal [3]. Due to the spectral overcrowding for radio transmissions, the only way to increase the useful bitrate and/or the number of channels/customers is to use the most bandwidth compressed modulation formats.…”

Section: Introductionmentioning

confidence: 99%

New modulation scheme for integrated single side band lightwave source allowing fiber transport up to 256 QAM over 38 GHz carrier

Vergnol

Cadiou²,

Carenco³

et al.

Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Ca

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Capacity analysis for WDMm fiber-radio backbones with star-tree and ring architecture incorporating wavelength interleaving

Lim

Nirmalathas

Novak³

et al. 2003

J. Lightwave Technol.

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Multi-carrier and m-QAM modulation based on integrated single side band lightwave source

Cited by 5 publications

References 4 publications

Mitigation strategy for transmission impairments in millimeter-wave radio-over-fiber networks [Invited]

Mitigation strategy for transmission impairments in millimeter-wave radio-over-fiber networks [Invited]

New modulation scheme for integrated single side band lightwave source allowing fiber transport up to 256 QAM over 38 GHz carrier

Capacity analysis for WDMm fiber-radio backbones with star-tree and ring architecture incorporating wavelength interleaving

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