By Topic

Design considerations for vertical δk directional coupler

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Chin, M.K. ; Dept. of Electr. Eng., California Univ., San Diego, CA, USA

Theoretical results relevant to the design of a vertical Δκ switch are presented. The principle of a Δκ switch is the modulation of the coupling length by the application of an even electrooptic perturbation on the coupling region. Power switching requires that ΔκL=π/2. The initial state can be tuned electrically. The coupling length and the change with the index perturbation depend on many factors, such as the thickness and the refractive index of the coupling layer. Based on an analytic solution of the eigenmodes and eigenindices of the symmetric structure, the author clarifies many of these dependencies and obtains the relationship between the switching length required for power crossover and the available index change. The merits of the Δκ switch are discussed, and its efficiency is compared with that of the conventional Δβ switch

Published in:

Lightwave Technology, Journal of  (Volume:11 ,  Issue: 8 )