Refractive index approximations from linear perturbation theory for planar MQW waveguides

Gregory M. Alman; Hongen Shen; Lynne A. Molter; Mitra B. Dutta

doi:10.1117/12.60471

1 July 1992 Refractive index approximations from linear perturbation theory for planar MQW waveguides

Gregory M. Alman, Hongen Shen, Lynne A. Molter, Mitra B. Dutta

Proceedings Volume 1679, Physics and Simulation of Optoelectronic Devices; (1992) https://doi.org/10.1117/12.60471
Event: Semiconductors '92, 1992, Somerset, NJ, United States

Abstract

For planar multilayer waveguides with multiple quantum wells (MQW), integral formulas for the optimal refractive index when the MQW are replaced by a single uniform layer are derived by considering linear perturbations of the fields and propagation constants for solutions of the wave equation. These integral formulas simplify to familiar discrete averages if the spatial variations of the fields over a period of the MQW are small. The discrete average result for TE modes is applied to a waveguide with a single MQW guiding region and the relative magnitude of the errors in the power distribution and propagation constant for symmetric and antisymmetric modes are explained.

Citation Download Citation

Gregory M. Alman, Hongen Shen, Lynne A. Molter, and Mitra B. Dutta "Refractive index approximations from linear perturbation theory for planar MQW waveguides", Proc. SPIE 1679, Physics and Simulation of Optoelectronic Devices, (1 July 1992); https://doi.org/10.1117/12.60471

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