کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1543395 | 997504 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel architecture of ultracompact pulse position modulator in photonic crystals
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel architecture of ultracompact pulse position modulator in photonic crystals A novel architecture of ultracompact pulse position modulator in photonic crystals](/preview/png/1543395.png)
چکیده انگلیسی
We propose and analyze a novel photonic crystal pulse position modulator utilizing a coupled cavity waveguide delay line. Also, a nonlinear photonic crystal directional coupler is used as an all-optical switch in the proposed structure. The input data acts as the control signal of the switch and activates the switching operation. We show that the device size can be reduced significantly by designing the delay line to achieve a reduced group velocity and a quasi-flat impurity band. The size of the designed modulator is 32a × 16a, where a represents the lattice constant of the photonic crystal. The characteristics of the device are investigated by finite-difference time-domain (FDTD) and plane wave expansion (PWE) methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 7, Issue 2, May 2009, Pages 69–75
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 7, Issue 2, May 2009, Pages 69–75
نویسندگان
Armaghan Eshaghi, Mir M. Mirsalehi, Amir R. Attari,