Showing papers by "Mark S. Hybertsen published in 1997"
06 Jun 1997
TL;DR: A 2D bulk and quantum well laser simulation tool, based on the Bell Laboratories electron device simulator PADRE, has been developed as discussed by the authors, which contains a suite of robust programs for obtaining self-consistent solutions of the Drift Diffusion equations.
Abstract: A 2D bulk and quantum well laser simulation tool, based on the Bell Laboratories electron device simulator PADRE, has been developed. PADRE contains a suite of robust programs for obtaining self-consistent solutions of the Drift Diffusion equations. To this suite has been added programs for calculating the optical intensity inside the laser, the capture and emission rates between bound and free carriers, the interaction between the confined carriers and the optical field, and a set of ne, powerful schemes for obtaining rapid convergence of the nonlinear equations of the model. This paper describes the augmented program in its present form, gives examples of its present abilities and limitations, and discusses some illustrative results to show features of the simulation tool.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
14 citations
06 Jun 1997
TL;DR: In this article, a microscopic model of the gain and refractive index change in multi-quantum well lasers is applied to study the linewidth enhancement factor, and the following issues in the model are studied: the lineshape used to broaden the gain, band gap renormalization, self consistent band bending and carrier spill out into separate confinement layers.
Abstract: A microscopic model of the gain and refractive index change in multi-quantum well lasers is applied to study the linewidth enhancement factor. The following issues in the model are studied: the lineshape used to broaden the gain, band gap renormalization, self consistent band bending and carrier spill out into the separate confinement layers. The application of the model to laser design issues is illustrated through consideration of the influence of well strain and barrier band gap. Comparison is made to experiment.© (1997) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
7 citations
06 Jun 1997
TL;DR: In this article, various experimental methods for measurements of the optical gain, transparency wavelength and optical loss are discussed as well as newly developed methods for characterization of other laser parameters, such as linewidth enhancement factor, differential gain, and wavelength chirp.
Abstract: We discuss various experimental methods for measurements of the optical gain, transparency wavelength and optical loss. We discuss existing methods as well as newly developed. It is also shown how this set of measurements allows for characterization of other laser parameters, such as linewidth enhancement factor, differential gain, and wavelength chirp. We illustrate how these techniques are used for improving the laser performance for different applications.
6 citations