Title :
Modeling of Ti:LiNbO/sub 3/ waveguide devices. I. Directional couplers
Author :
Koai, Kwang T. ; Liu, Pao-Lo
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Amherst, NY, USA
fDate :
3/1/1989 12:00:00 AM
Abstract :
An efficient modelling method to simulate Ti-indiffused LiNbO/sub 3/ channel waveguide devices from their design and fabrication parameters is discussed. Procedures are: (1) derivation of the two-dimensional (2-D) refractive index profile; (2) transformation of the 2-D transverse refractive index profile to its one-dimensional (1-D) effective index profile; and (3) use of the 2-D beam propagation method to analyze the device performance. With slight consistent adjustments on Ti-induced refractive index changes, it is possible to calculate the performance of directional couplers in good agreement with experimental measurements. This modeling method can be used to predict performance of future devices.<>
Keywords :
directional couplers; lithium compounds; optical couplers; optical design techniques; optical waveguides; titanium; 1D effective index profile; 2D refractive index profile; LiNbO/sub 3/:Ti channel waveguide device; beam propagation method; directional couplers; modelling method; Directional couplers; Integrated optics; Optical computing; Optical devices; Optical propagation; Optical refraction; Optical variables control; Optical waveguides; Refractive index; Two dimensional displays;
Journal_Title :
Lightwave Technology, Journal of
