Abstract
We propose a pseudospectral mode solver for optical waveguide mode analysis
formulated by the frequency-domain Maxwell equations. Special attention is
paid upon identifying the required boundary operator for the formulation and
the relationships between the derived operator and the physical boundary conditions.
These theoretical results are adopted into a Legendre pseudospectral multidomain
computational framework to compute the propagation characteristics of optical
waveguides. Numerical experiments are conducted, and the expected spectral
convergence of the scheme is observed for smooth problems and for problems
having field jumps at material interfaces. For dielectric waveguides with
sharp corners, the spectral convergence is lost due to the singular nature
of fields at the corner. Nevertheless, compared with other methods, the present
formulation remains as an efficient approach to obtain waveguide modes.
© 2012 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription