Title :
Roughness scattering into substrate radiation modes of rib waveguides
Author :
Hewson-Browne, R.C. ; Kendall, P.C. ; Quinney, D.A.
Author_Institution :
Sheffield Univ., UK
fDate :
10/1/1989 12:00:00 AM
Abstract :
An estimation of roughness scattering into substrate radiation modes of semiconductor rib waveguides manufactured from III-V compounds is obtained. A guided mode is supposed to be incident upon a corrugated section of the rib sidewall. It is found that scattering into substrate radiation modes considerably exceeds that into slab modes (i.e. surface waves). Once this has been accepted, the radiation formula becomes simple, and should be allowed to replace the less accurate EDC formula
Keywords :
III-V semiconductors; integrated optics; light scattering; optical waveguide theory; substrates; III-V semiconductors; corrugated section; effective dielectric constant; formula; guided mode; incident; integrated optics; radiation formula; rib sidewall; rib waveguides; roughness scattering; scattering; semiconductor rib waveguides; slab modes; substrate radiation modes;
Journal_Title :
Optoelectronics, IEE Proceedings J
