Optical Mode Calculation in Large-Area Photonic Crystal Surface-Emitting Lasers
Mindaugas Radziunas,
Eduard Kuhn,
Hans Wenzel
et al.
Abstract:We discuss algorithms and numerical challenges in constructing and resolving spectral problems for photonic crystal surface-emitting lasers (PCSELs) with photonic crystal layers and large (up to several tens of mm 2 ) emission areas. We show that finite difference schemes created using coarse numerical meshes provide sufficient accuracy for several major (lowest-threshold) modes of particular device designs. Our technique is applied to the example of large-area all-semiconductor PCSELs, showing how it can be u… Show more
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