Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
848510 | Optik - International Journal for Light and Electron Optics | 2014 | 4 Pages |
Abstract
A tunable wavelength filter is designed using Ti:LiNbO3 asymmetric directional coupler. One arm of the directional coupler is made of continuous waveguide while the other arm is periodic segmented. This segmentation reduces the lithographic steps and hence the fabrication cost required for such asymmetric coupler based filter. The propagation constant of periodical segmented and continuous waveguides are analysed using Effective-Index-based Matrix Method. The tunability is achieved using electro-optic property of LiNbO3.
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Authors
Rajib Chakraborty,