Title :
Design of strip-loaded weak-guiding multimode interference structure for an optical router
Author :
El-Refaei, Hatem H. ; Khalil, Diaa A M
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
12/1/1998 12:00:00 AM
Abstract :
We introduce a new multimode interference structure that can be used as an integrated optical router. This structure is based on the existence of a first cross state in weakly guiding multimode waveguides. Such a cross image, not expected by the self-imaging technique, is tested by rigorous modal analysis as well as the nonmodal beam propagation method. We show that the quality of this image could be enhanced by strip loading the multimode section of the structure. Making use of this image, we propose a new optical router based on the large nonlinearity associated with the blockaded reservoir and quantum-well electron transfer structure
Keywords :
integrated optics; light interference; modal analysis; optical design techniques; optical images; optical waveguide theory; semiconductor quantum wells; BRAQWET semiconductor structure; blockaded reservoir; cross image; design; first cross state; integrated optical router; large nonlinearity; modal analysis; nonmodal beam propagation method; optical router; quantum-well electron transfer structure; self-imaging technique; strip loading; strip-loaded weak-guiding multimode interference structure; weakly guiding multimode waveguides; Automatic testing; Electron optics; Integrated optics; Interference; Modal analysis; Optical propagation; Optical waveguides; Quantum wells; Reservoirs; Strips;
Journal_Title :
Quantum Electronics, IEEE Journal of
