Optimization of 40 Gbit/s dispersion maps for long-haul WDM transmissions with up to 0.4 bit/s/Hz spectral efficiency

Dany, B.; Leclerc, O.; Neddam, F.; Lourec, P. Le

doi:10.1109/ofc.2001.927353

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…5. In a single-channel 40-Gb/s system, the Q-factor was slightly decreased as we increased the dispersion due to the pulse-to-pulse interaction [1]. In 40-Gb/s based WDM systems, XPM significantly deteriorated the Q-factor when the NZDSF (4 ps/nm/km) was used with narrow channel spacing.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, the Q-factor for SPDMF was measured to be 2 dB higher than other fibers. This was mainly because the small average dispersion (1 ps/nm/km) of SPDMF prevented the pulse-to-pulse interactions (intra-channel nonlinearities) [1] while its large local dispersion suppressed the inter-channel nonlinearities [3]- [4]. In addition, we could obtain higher OSNR by using SPDMF than using MDF or SMF since it required very small amount of DCF modules.…”

Section: Methodsmentioning

confidence: 99%

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Transmission of 40-Gb/s x 8-WDM channels with 0.4-(bits/s)/Hz spectral efficiency using short-period dispersion-managed fiber

2002

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Transmission of 40-Gb/s x 8-WDM channels with 0.4-(bits/s)/Hz spectral efficiency using short-period dispersion-managed fiber

2002

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“…Moreover, it is a key technology for several other functions, including all-optical wavelength conversion, regeneration, wavelength selection etc. Semiconductor laser amplifier based technology have demonstrated their ability to satisfy the system requirements for various system applications ranging from 40Gbit/s packet switching [1] to 40Gbit/s and higher long-haul transmissions [2].…”

Section: Introductionmentioning

confidence: 99%

A new technique for the estimation of optical bandwidth of semiconductor laser amplifiers

Karim

2005

SPIE Proceedings

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Semiconductor laser amplifier (SLA) based technology is an enabling technology for advanced optical networks. The potential for large-scale integration of SLA technology offers economical, high-performance devices that combine monolithic and hybrid solutions. Using SLAs, various devices can be built with enhanced functionalities as required for future optical networks. In a SLA, amplification of incident optical radiation takes place in the active layer along the length of an amplifier. However, frequency response of input signal (which can be amplified by a SLA), depends upon the available bandwidth. In this paper, a new analytical technique is outlined for bandwidth measurement of a SLA. This technique is based on measurement of saturation power and input power coupled in the active layer of SLA and is successfully applied to calculate the bandwidth of FP and near traveling wave (NTW) SLAs.

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“…Presently, most optical fiber communication systems are being operated at a spectral efficiency of 0.4 bits/s/Hz or below, corresponding for example to WDM (wavelength division multiplex) -systems with a data rate per wavelength channel of 40 Gbit/s at a channel spacing of 100 GHz [1]. For a better usage of the optical bandwidth there are considerable efforts under way towards dense wavelength division multiplex (DWDM) -systems with a spectral efficiency of 0.8 bits/s/Hz [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Spectrally efficient optical fiber communication systems with intensity modulation

et al. 2004

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In order to efficiently use the available optical bandwidth efforts are under way to achieve spectral efficiencies of at least 0.8 bits/s/Hz. For such spectrally efficient systems (considering co-polarized WDM-channels) the importance of filtering for different modulation formats, different channel bitrates from 10 -160 Gbit/s and different dispersion map designs will be discussed. It turns out that the optimisation strategy for spectrally efficient WDM systems shows considerable differences to single channel systems. The specific modulation format and the chosen channel bitrate turn out to be of minor importance, thus enabling simple analytic expressions for the achievable system performance.

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Optimization of 40 Gbit/s dispersion maps for long-haul WDM transmissions with up to 0.4 bit/s/Hz spectral efficiency

Cited by 8 publications

References 3 publications

Transmission of 40-Gb/s x 8-WDM channels with 0.4-(bits/s)/Hz spectral efficiency using short-period dispersion-managed fiber

Transmission of 40-Gb/s x 8-WDM channels with 0.4-(bits/s)/Hz spectral efficiency using short-period dispersion-managed fiber

A new technique for the estimation of optical bandwidth of semiconductor laser amplifiers

Spectrally efficient optical fiber communication systems with intensity modulation

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