کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7932732 | 1512817 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Realization of a multichannel drop filter using an ISO-centric all-circular photonic crystal ring resonator
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Here, by using a square-lattice-type photonic crystal (PhC) and an ISO-centric all-circular ring resonator (RR), a high efficiency in-plane multichannel drop filter (MCDF) is realized. By conducting full-spectrum transmission studies on available tuning parameters such as RR radius, RR refractive index, PhC lattice high and low refractive indices, and PhC lattice constant, the transmission behavior of each parameter is found in terms of blue or red shift wavelength dependencies. The single unit of the PhC-based filter is optimized to work at a desired optical wavelength (e.g., λ0â=â¯1550â¯nm). The MCDF is formed by cascading a desired number of the basic unit (e.g., five units), whereas using the knowledge learned from full-spectrum transmission behavior, each unit is proportionally tuned to operate at a desired different wavelength with an appropriately engineered channel spacing and crosstalk. The high efficiency dropping task of MCDF was successfully acquired with reasonable drop efficiencies as low as 76%, up to 100%. The crosstalk across all channels varied from â10 db as the worst case down to â50 db as the best case; this ensures a hopeful application of the MCDF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 31, September 2018, Pages 52-59
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 31, September 2018, Pages 52-59
نویسندگان
Alireza Tavousi, Hamid Heidarzadeh,