Abstract

High Contrast Gratings (HCG) have become a hot research topic, because of their new functionalities at very small volumes [1]. However no efficient 3D VCSEL model capable to account for HCG has been reported to date. HCG design is therefore mainly based on 1D simulations. For more realistic simulations only FDTD has been used so far, which is well known to be computationally very demanding and therefore not usable as a design tool. The VELM code, the well established VCSEL electromagnetic solver developed in the last ten years in the Torino group [2], has now been upgraded to rigorously handle HCG layers [3]. The efficiency of the tool is preserved, and an entire set of HCG VCSEL modes can be computed in minutes on an ordinary desktop.

© 2013 IEEE