ANALYSIS OF DIELECTRIC GUIDES BY TRANSVERSE MAGNETIC-FIELD FINITE-ELEMENT PENALTY METHOD

The main purpose of this paper is to use the finite element method usi ng a penalty function formulation to solve the vector wave equation wi th transverse H-field formulation together with the boundary operator. We impose continuity conditions on the boundary interfaces for both E (Z) and H-Z components. We apply this technique to obtain the propagat ion constant for a three-layer ridge structure and a multiple quantum well ridge guide as examples, and a comparison with previously publish ed results shows excellent agreement.