Computational modeling of diffused channel waveguides using a domain integral equation

• Published in: Journal of lightwave technology Vol. 8; no. 4; pp. 576 - 586
• Main Authors: Baken, N.H.G., Diemeer, M.B.J., van Splunter, J.M., Blok, H.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.1990; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Circuit properties; Computational modeling; Electric, optical and optoelectronic circuits; Electromagnetic waveguides; Electronics; Exact sciences and technology; Finite element methods; Glass; Integral equations; Integrated optics. Optical fibers and wave guides; Optical and optoelectronic circuits; Optical waveguides; Process design; Substrates; Waveguide components; Numerical analysis; Channel waveguide; Theoretical study; Integral equation; Optical waveguide; Arbitrary shaped body; Modeling
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/50.50764

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 HE/sub 11/ 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.< >