Title :
Computational modeling of diffused channel waveguides using a domain integral equation
Author :
Baken, Nico H G ; Diemeer, Mart B J ; Van Splunter, Jaap M. ; Blok, Hans
Author_Institution :
PTT Res. Neher Lab., Leidschendam, Netherlands
fDate :
4/1/1990 12:00:00 AM
Abstract :
A domain integral equation is proposed for the computational modeling of diffused channel waveguides. In the modeling the propagation properties and the field distributions of the lower order guided modes are computed. The method is used to design the channel waveguides that are realized by an ion-exchange process in glass substrates. In particular, the method is applied to the design of ion-exchanged waveguides with low fiber/chip coupling losses. The aim is to realize modal distributions in the channel waveguides that closely match the rotationally symmetric field distributions of the HE11 fiber mode. Some technological aspects of the realization of such ion-exchange waveguides are indicated, and various numerical results relevant to the design process are presented
Keywords :
fibre optics; integral equations; integrated optics; ion exchange; optical losses; optical waveguide theory; HE11 fiber mode; computational modeling; diffused channel waveguides; domain integral equation; fiber/chip coupling losses; field distributions; glass substrates; ion-exchange process; ion-exchanged waveguides; lower order guided modes; modal distributions; propagation properties; rotationally symmetric field distributions; waveguide channel design; Computational modeling; Electromagnetic waveguides; Finite element methods; Glass; Helium; Integral equations; Optical waveguides; Process design; Substrates; Waveguide components;
Journal_Title :
Lightwave Technology, Journal of
