Fiber-optic communication systems have revolutionized our telecommunication
infrastructures–currently, almost all telephone land-line, cellular, and internet …

Gordon and Mollenauer, in their famous paper published in 1990, laid out how the interplay
between the nonlinear Kerr effect in optical fibers and the amplified spontaneous-emission …

Exact signal statistics for fiber-optic links containing a single optical pre-amplifier are
calculated and applied to sequence estimation for electronic dispersion compensation. The …

We present a novel perturbation method for the nonlinear Schrodinger equation (NLSE) that
governs the propagation of light in optical fibers. We apply this method to study signal-noise …

The goal of this paper is to analyze the effects of key receiver impairments on the
performance of differential phase-shift keying (DPSK), like the responsivity imbalance …

We review the time domain, frequency domain, and Fourier series Karhunen-Loeve series
expansion (KLSE) methods for exact BER evaluation in intensity-and phase-modulated …

In this letter, we analyze the validity of the use of the Q parameter evaluation in the study of
the bit-error-rate (BER) performance of direct-detection differential phase-shift keying optical …

We consider the application of concatenated codes with interleaver and iterative decoding to
optical communication systems. We show how to obtain the optimum log-likelihood ratio to …

The effect of five different receiver (RX) impairments on the performance of amplified
spontaneous emission (ASE)-noise-limited differential quadrature phase-shift keying …

A fourth-order Runge-Kutta in the interaction picture (RK4IP) method is presented for solving
the coupled nonlinear Schr¨ odinger equation (CNLSE) that governs the light propagation in …