Analysis of long-period waveguide grating arrays
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Related Research Unit(s)
|Journal / Publication||Journal of Lightwave Technology|
|Publication status||Published - Oct 2006|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-33750215332&origin=recordpage|
The authors analyze an array of long-period waveguide gratings with coupled-mode theory and show that the grating array can provide effective power transfer among the waveguides at specific wavelengths in the absence of evanescent-field coupling. In particular, they derive the general conditions for obtaining an arbitrary distribution of power splitting ratios among the waveguides and discuss several special cases. They also present a design example using practical waveguide parameters to demonstrate the feasibility of forming such grating arrays for the realization of multiport broadband couplers and add/drop multiplexers. © 2006 IEEE.
- Gratings, Optical couplers, Optical filters, Optical planar waveguides, Optical waveguides, Waveguide arrays