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Karimi A, Emami F, Nozhat N. Add-Drop Filters Based on Grating-Assisted Contra-Directional Couplers. ICOP & ICPET _ INPC _ ICOFS 2014; 20 :1625-1628
URL: http://opsi.ir/article-1-53-en.html
URL: http://opsi.ir/article-1-53-en.html
1- Faculty of Electrical and Electronic Engineering, Shiraz University of Technology, Shiraz, Iran
Abstract: (6341 Views)
Add-drop filters based on grating-assisted contra-directional couplers are investigated. It is shown that the implementation of the add-drop filter using strip waveguides with sidewall corrugated Bragg gratings results a stop-band with the central wavelength at 1.69 mm and a drop port wavelength at 1.56 mm. Moreover, the studied add-drop filter with rib waveguides shows the stop-band with the central wavelength at 1.58 mm and a drop port wavelength at 1.53 mm. In this case the gratings are corrugated on the sidewalls of the waveguides and between them. The drop port wavelength can be adjusted by altering the structural parameters.
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