Abstract
An analysis is made of the operation of the parallel waveguide directional coupler by incorporating eigenmode phase shifts in the input and output transition regions. The set of modes used in the analysis consists of the orthogonal symmetric and antisymmetric modes of the unperturbed parallel waveguide. It is demonstrated how the switching diagram changes as the transitional phase shifts increase. There is no indication that these built-in phase shifts degrade coupler crosstalk performance for the states normally used. Conditions for symmetric switching are derived.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Sign-in/Register to access full text options 
Free) 
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 call
