Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1336
Title: Numerical and experimental demonstration of a wavelength demultiplexer design by point-defect cavity coupled to a tapered photonic crystal waveguide
Authors: Hayran, Zeki
Turduev, Mirbek
Botey, Muriel
Herrero, Ramon
Staliunas, Kestutis
Kurt, Hamza
200103
Keywords: Channel Drop Filters
Issue Date: 1-Jan-2016
Publisher: Optical Soc Amer
Source: Hayran, Z., Turduev, M., Botey, M., Herrero, R., Staliunas, K., & Kurt, H. (2016). Numerical and experimental demonstration of a wavelength demultiplexer design by point-defect cavity coupled to a tapered photonic crystal waveguide. Optics letters, 41(1), 119-122.
Abstract: We propose and experimentally demonstrate a demultiplexer with point-defect resonators and a reflection feedback mechanism in a photonic crystal waveguide (PCW). A tapered PCW has been chosen as the necessary reflector, which enhances the drop efficiency. Due to the variation of the single-mode waveguide width of the tapered PCW, spatial alteration of the effective refractive index can be achieved. This phenomenon is used to reflect back the forward propagating wave which is then coupled again to the drop channels via the resonators. High transmission efficiency to the dropout channels is numerically predicted by calculations, either in two- and three-dimensional models, and analytically described by a coupled-mode theory. Moreover, an experimental realization in the microwave regime provides confirmation that the targeted wavelengths can be properly transmitted at the drop channels with low crosstalk and relatively high efficiencies. (C) 2015 Optical Society of America
URI: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-41-1-119
https://hdl.handle.net/20.500.11851/1336
ISSN: 0146-9592
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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