Abstract
At the National Optics Institute we have developed a user friendly software system, BPM-CAD, to model integrated and fiber optical waveguide devices. The BPM-CAD is based on several numerical methods, the core of which is a 2-D and 3-D beam propagation method. Included is a correlation function method that gives modal properties such as propagation constants, relative mode weights, and mode eigenfunctions. To find modal properties of the more complicated waveguiding structures we also use a path integral method. This BPM-CAD system includes algorithms for solving the characteristic equation of planar multilayered structures and various types of fiber. Finally, to obtain the electric-field distribution of general electrode patterns for electrooptic devices, a mode projecting method is implemented. Each application has its own, multi-window data entry user interface with data editing abilities and geometrical device structure previewing. Acceptance of the edited and previewed data file starts the numerical procedure in a multiwindow, menu-driven graphical environment. Our research activities currently applying the BPM-CAD software include modal noise in short fiber sections, tapered fiber connector and, in integrated optics, the analysis of multi-mode branching structures and a Ti:LiNbO3 integrated Doppler velocimeter.
© 1991 Optical Society of America
PDF ArticleMore Like This
Zdzislaw Jakubczyk
WA.11 Optical Design for Photonics (ODP) 1993
Timothy D. Wise
TUK3 OSA Annual Meeting (FIO) 1987
Youngchul Chung and Nadir Dagli
TuD25 Integrated Photonics Research (IPR) 1991