Abstract
Buried-channel waveguides and couplers are analyzed by perturbations and variational methods under the scalar approximation. Propagation constants of the first- and higher-order modes are calculated. When far from cutoff, both methods give nearly identical results. Near cutoff, the variational method predicts the dispersion characteristics more accurately. The methods can be easily implemented on a PC to produce the dispersion characteristics as well as the field patterns. Correction to the scalar solutions that accounts for the polarization effects due to the refractive index discontinuity and the material birefringence is included in the analysis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
