In this paper, we present three-dimensional (3D) simulation results for an integrated wavelength converter which monolithically combines a pre-amplifying receiver with a post-amplified sampled-grating distributed Bragg reflector tunable laser diode. The self-consistent physical model used in the simulation takes into account gain and absorption in the quantum wells, carrier drift and diffusion, and optical wave-guiding. In order to validate and calibrate the model, we compare the results to available experimental data. Microscopic physical processes inside the converter components are revealed and analyzed, such as receiver saturation effects.
A numerical simulation of Semiconductor Optical amplifiers is proposed, which self-consistently solves the vertical transport and the bidirectional propagation for both coherent signals and amplified spontaneous emission. A realistic account of taper sections is obtained in deriving the confinement factor in all component sections. Microscopic equations are used, as far as possible, for both gain and spontaneous emission rates. With few adjustable parameters we nevertheless obtain a good fit to experimental data which remains stable with geometry and active material changes.
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