S. Kindt

TL;DR: In this paper, the authors define general parameters that are of relevance for signal processing applications and show how basic experiments and general simulation procedures can be used to determine optimum operating conditions for the intended applications.

TL;DR: In this paper, an analytical theory describing all-optical wavelength converters based on cross-gain modulation (XGM) in semiconductoroptical amplifiers is derived, which consists of two parts: a large-signal analysis yielding the transmission function for the signal, and a small signal analysis in order to describe the transformation of the signal and probe intensity noise.

TL;DR: In this paper, an analytical solution of the four-wave mixing problem including gain dispersion and saturation effects is given, and it is shown that the linear gain factors for the different waves and the nonlinear susceptibilities associated with the different nonlinear effects must be characterized by different carrier densities at transparency.

TL;DR: In this article, an analytical expression for the turn-on delay probability density function (pdf) of single-mode lasers biased below threshold is derived, which is in good agreement with results based on computer simulations and measurements.

TL;DR: In this article, the amplified spontaneous emission of a semiconductor-optical amplifier saturated by two input waves is investigated theoretically and experimentally for both co- and counter-propagating injection.