Modeling first-order distributed feedback semiconductor lasers at NIR

Meng-Mu Shih

doi:10.1117/12.884459

19 May 2011 Modeling first-order distributed feedback semiconductor lasers at NIR

Meng-Mu Shih

Proceedings Volume 8039, Laser Technology for Defense and Security VII; 80391B (2011) https://doi.org/10.1117/12.884459
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

This work demonstrates the modeling process of calculating coupling coefficients of first-order distributed feedback (DFB) semiconductor lasers, operating on transverse electric modes in the near-infrared (NIR) spectrum range. Optical waveguides are common structures in semiconductor lasers. The structure has dielectric layers and a metal grating layer. The interface between the metal layer and its neighboring dielectric layer has a sinusoidal corrugated geometry. Coupling coefficients are important parameters when analyzing laser performance. To calculate the coupling coefficient of a shiny-metal-grating waveguide, an electromagnetic model is constructed by truncated Floquet-Bloch formalism (TFBF). Ray optics technique is also used to calculate the coupling coefficients. These two methods have close results.

Citation Download Citation

Meng-Mu Shih "Modeling first-order distributed feedback semiconductor lasers at NIR", Proc. SPIE 8039, Laser Technology for Defense and Security VII, 80391B (19 May 2011); https://doi.org/10.1117/12.884459

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