کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1535908 1512637 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two bit all-optical analog-to-digital converter based on nonlinear Kerr effect in 2D photonic crystals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Two bit all-optical analog-to-digital converter based on nonlinear Kerr effect in 2D photonic crystals
چکیده انگلیسی

We have demonstrated the performance of a novel design for a single wavelength 2-bit all-optical analog-to-digital converter (ADC). This converter consists of two high efficient channel drop filters with a coupled cavity-based wavelength selective reflector in a 2D photonic crystal with total length of 15.87 μm. The A/D conversion is achieved by using nonlinear Kerr effect in the cavities. The output ports switch to state ‘1’ at different input power levels to generate unique states preferred for an ADC. This conversion is simulated by the finite difference time domain (FDTD) method for 5 different power levels. The proposed structure can function as a two-bit ADC with a 60 mW/μm input pulse and its maximum sampling rate is found to be ~ 45 GS/s.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issues 13–14, 15 June 2012, Pages 3228–3233
نویسندگان
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