Title :
Optical bent rib waveguide with reduced transition losses
Author :
Seo, Chulhun ; Sim, Young-Jin
Author_Institution :
Dept. of Telecommun. Eng., Soongsil Univ., Seoul, South Korea
fDate :
5/1/1996 12:00:00 AM
Abstract :
Large losses occur at the transition between straight and curved rib waveguide segments. A bent optical rib waveguide is analyzed by the 3D imaginary-distance beam propagation method (BPM). The BPM is implemented with 3D finite differences. The transition losses are reduced with several techniques: (1) the offset between bent and straight guides, (2) trench location and sizes, (3) optimized slope of rib sidewall
Keywords :
bending; finite difference methods; light propagation; optical losses; optical waveguide theory; rib waveguides; 3D finite differences; 3D imaginary-distance beam propagation method; bent guides; offset; optical bent rib waveguide; optimized slope; rib sidewall; straight guides; transition losses reduction; trench location; trench sizes; Finite difference methods; Image analysis; Image segmentation; Integrated optics; Optical beams; Optical losses; Optical propagation; Optical waveguides; Partial differential equations; Propagation constant; Waveguide transitions;
Journal_Title :
Magnetics, IEEE Transactions on
