Open AccessElectro-optically reconfigurable waveguide superimposed gratings
Author(s) -
Mykola Kulishov,
Xavier Daxhelet
Publication year - 2001
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.9.000483
Subject(s) - optics , bandwidth (computing) , waveguide , transmission (telecommunications) , refractive index , materials science , diffraction grating , weighting , optoelectronics , diffraction , computer science , physics , telecommunications , acoustics
A new concept of electro-optically reconfigurable waveguide superimposed gratings with their widely controllable transmission characteristics are present. It is based on two types of superimposed refractive index gratings, electronically induced in an electro-optically active core. These gratings can be independently switched ON and OFF or both simultaneously activated with the controllable weighting factor. In this case its transmission characteristics represent double-dip rejection band spectrum with independent control of the dip positions and bandwidth. This simple concept opens opportunities for developing a number of tunable devices for integrated optics by use of the proposed design as a building block.