Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 34, Issue 18, Pages 4240-4251Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2016.2594214
Keywords
High-contrast grating (HCG); in-plane heterostructure; quality factor (Q-factor); vertical-cavity surface-emitting laser (VCSEL)
Funding
- Danish Council for Independent Research [0602-01885B]
- Innovation Fund Denmark through the HOT project [5106-00013B]
- Villum Fonden via the NATEC Centre of Excellence
- Villum Fonden [00008692] Funding Source: researchfish
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We explore the use of a modal expansion technique, Fourier modal method (FMM), for investigating the optical properties of vertical cavities employing high-contrast gratings (HCGs). Three techniques for determining the resonance frequency and quality factor (Q-factor) of a cavity mode are compared, and the computational uncertainties in the resonance frequency and Q-factor calculations are analyzed. Moreover, a method for reducing a three-dimensional (3D) simulation to lower-dimensional simulations is suggested, which allows for very fast and approximate analysis of a 3D structure. By using the implemented FMM, the scattering losses of several HCG-based vertical cavities with inplane heterostructures which have promising prospects for fundamental physics studies and on-chip laser applications, are investigated. This type of parametric study of 3D structures would be numerically very demanding using spatial discretization techniques.
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