M. I. Hayee

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We analyze fiber transmission penalties due to erbium-doped fiber amplifier (EDFA) power transients that result from fiber nonlinearity and ASE noise in a chain of 10-20 EDFAs with as many as 32 wavelength-division multiplexing (WDM) channels. We find due to worst case power transients: (i) system performance is severely degraded (up to few 10s of dB) both(More)
A symmetrized split-step Fourier (SSSF) simulation model with global simulation accuracy control is extended to vector optical fiber multi-span propagation cases, which are applicable to the waveform level simulation of polarization multiplexed coherent optical communication systems. Using local error bound obtained from a scalar simulation package, the(More)
After an introduction to the nonlinear fiber transmission and an optimal channel equalization scheme, recently proposed analytical step-size selection and scaling rules was verified to achieve comparable global simulation accuracy for split-step Fourier (SSF) simulations of optical pulse propagation through fiber with low simulation accuracy. Its(More)
Simulation step-size optimization based on an analytical step-size selection rule is applied to the waveform level simulation of polarization multiplexed optical signal propagation through dispersion compensated optical fiber links over a large range of simulation accuracy level, chromatic dispersion, and differential group delay. Extensive numerical(More)
By comparing with the exact optical communication system performance obtained using a quasi-analytical BER calculation method, we systematically analyze the accuracy of the Gaussian approximation (GA) method and the threshold-based margin measurement method for performance evaluation of on-off keying (OOK) optical amplifier systems. We reveal the inherent(More)
We demonstrate elimination of RF power degradation over 94 km of single-mode fiber in subcarrier transmission from 0.25 to 14 GHz by modulating a 35-ps soliton train. Our results show that solitons are good candidates for subcarrier transmission to avoid degrading dispersion effects.
A local error method based on an analytical scheme previously developed for the scalar optical fiber channel is applied to the second-order symmetrized split-step Fourier simulation of polarization multiplexed signal propagation through dispersion compensated optical fiber links. It is found that the global simulation accuracy for the vector propagation can(More)
We propose a technique to electronically postcompensate fiber nonlinearity in ≥40 Gbit/s long-haul WDM transmission systems. We have analyzed this technique for return-to-zero and carrier-suppressed return-to-zero modulation formats using two different dispersion maps. Our analysis shows that the proposed technique can increase the overall system(More)
Transportation Research Record: Journal of the Transportation Research Board, No. 2324, Transportation Research Board of the National Academies, Washington, D.C., 2012, pp. 125–132. DOI: 10.3141/2324-15 B. R. Maitipe, U. Ibrahim, and M. I. Hayee, Department of Electrical and Computer Engineering, University of Minnesota, Duluth, 271 MWAH, 1023 University(More)
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