10 Gbit/s NRZ single-channel systems with different positions of DCF and amplifier spans

Yu, Junsheng; Guan, Kejian

doi:10.1002/(sici)1098-2760(19981020)19:3<242::aid-mop20>3.0.co;2-2

Cited by 2 publications

(3 citation statements)

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“…Further insight is gained by considering the transfer function (8) achieved for θ = 0.5 without regard to the frequency. With increasing L S , the optimum value θ opt decreases.…”

Section: Stimulated Raman Scatteringmentioning

confidence: 99%

“…However, the impact of nonlinear fiber effects on bit error probability (BEP) strongly depends on the resulting dispersion map. Thus, several dispersion compensation schemes have been proposed to alleviate the performance impairment originating from nonlinear interaction [6][7][8][9]. Dispersion compensation can be easily implemented by embedding a single DCF ahead of the receiver [10].…”

Section: Introductionmentioning

confidence: 99%

“…Most of the previous work concentrates on the periodical removal of GVD-induced waveform distortions with equal DCFs located at every link section [12]. An important issue is whether the DCF should be inserted before or after the SSMF, what is called precompensation and postcompensation, respectively [8]. In the case of full compensation, it has been shown that the precompensation technique achieves the better results in a single-channel configuration [13], whereas the postcompensation scheme is favorable with respect to crosstalk caused by XPM [14].…”

Section: Introductionmentioning

confidence: 99%

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Improved Performance of WDM Systems by Partitioned Dispersion Compensation

Rapp¹

2000

Journal of Optical Communications

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Optimized dispersion compensation schemes help to alleviate performance limitations imposed by nonlinear fiber effects on WDM systems. Commonly, precompensation and postcompensation are compared in view of signal distortions. In this paper, the impact of the dominant effects self-phase modulation (SPM), crossphase modulation (XPM) and stimulated Raman scattering (SRS) is analyzed for a generalized approach comprising the already mentioned compensation schemes as special cases. Each of the identical link sections consists of a standard single-mode fiber (SSMF) and two dispersion compensating fibers (DCFs), which are placed ahead of and behind the transmission fiber. The fundamental issue is the appropriate choice of the length of the DCFs. In view of SRS, the postcompensation scheme turns out to yield best performance. In contrast, system impairment due to XPM is minimized if the dispersion to be compensated per section is split up on the two DCFs.In view of analog signals transmitted in an all-optical network, spectral characteristics of the distortions are investigated. A typical application is the transmission of video signals making use of subcarrier multiplexing (SCM). The results reveal how to reduce the distortions of a particular video channel.

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“…Further insight is gained by considering the transfer function (8) achieved for θ = 0.5 without regard to the frequency. With increasing L S , the optimum value θ opt decreases.…”

Section: Stimulated Raman Scatteringmentioning

confidence: 99%