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The accuracy of different transfer matrix approaches, which are used for solving the stationary effective mass Schrodinger equation for arbitrary one-dimensional potentials, is examined. Analytical model potentials as well as self-consistent Schrodinger-Poisson simulations of a heterostructure device have shown that a symmetrized transfer matrix approach has produced a similar accuracy as the Airy function method at a reduced numerical cost, thus avoiding the numerical problems associated with Airy function.

An alternative guided-wave optical interconnection architecture, based on using prismatic coupling elements, is described for enabling high-efficiency coupling into and out of an underlying multiple-quantum-well (MQW) modulator. The ray-trace and finite-difference time-domain simulation results have shown high coupling efficiency of the prism coupling structure.

A charge control model is developed for the transient analysis of the bipolar transistor laser in forward active mode in order to describe the dynamics of electron, photon and charge densities. The analysis of laser switching has shown that the turn-on time is reduced by increasing the base current or decreasing the spontaneous emission lifetime of electrons in the quantum well.

A method based on finite-difference mode convergence technique is described for analyzing nonlinear multilayered-planar waveguides and multiple-quantum-well structures. Many waveguide structures are analyzed in order to test the accuracy and establish the efficacy of the algorithm as a useful analysis recipe for modeling and understanding the modal properties of nonlinear multilayered waveguides.

A continuously tunable semiconductor disk laser with intracavity second-harmonic generation (SHG) is evaluated using a wedged and antireflection-coated diamond heatspreader. Findings reveal output powers of more than 600 mW tunable over 10 nm around 530 nm.