Open AccessModal loss mechanism of micro-structured VCSELs studied using full vector FDTD method
Author(s) -
Du-Ho Jo,
Ngoc Hai Vu,
Jintae Kim,
Inseok Hwang
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.018272
Subject(s) - finite difference time domain method , optics , modal , materials science , laser , semiconductor laser theory , mode (computer interface) , computer science , physics , polymer chemistry , operating system
Modal properties of vertical cavity surface-emitting lasers (VCSELs) with holey structures are studied using a finite difference time domain (FDTD) method. We investigate loss behavior with respect to the variation of structural parameters, and explain the loss mechanism of VCSELs. We also propose an effective method to estimate the modal loss based on mode profiles obtained using FDTD simulation. Our results could provide an important guideline for optimization of the microstructures of high-power single-mode VCSELs.