Title :
Analysis of abrupt bent waveguides by the beam propagation method and the conformal mapping method
Author :
Fan, Ping-Lin ; Wu, Mount-Learn ; Lee, Ching-Ting
Author_Institution :
Inst. of Opt. Sci., Nat. Central Univ., Chung-Li, Taiwan
fDate :
6/1/1997 12:00:00 AM
Abstract :
In this study, we propose a simple and applicable approach to analyze the large angle (larger than 100) abrupt bent waveguides. By using the conformal mapping technique, the abrupt bent waveguide is transformed into an equivalent straight one which the conventional (paraxial) beam propagation method (BPM) can be applied to analyze it directly. The field distribution in a 20° microprism type abrupt bent waveguide is also demonstrated by our method
Keywords :
bending; integrated optics; optical losses; optical prisms; optical waveguide theory; refractive index; abrupt bent waveguide; abrupt bent waveguides; beam propagation method; conformal mapping method; conformal mapping technique; equivalent straight waveguides; field distribution; microprism type abrupt bent waveguide; paraxial beam propagation; Conformal mapping; Integrated optics; Laplace equations; Optical design; Optical losses; Optical propagation; Optical waveguide theory; Optical waveguides; Refractive index; Waveguide transitions;
Journal_Title :
Lightwave Technology, Journal of
