کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7926212 1512513 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
All-optical intensity modulation based on graphene-coated microfibre waveguides
ترجمه فارسی عنوان
مدولاسیون شدت تمام نور بر اساس موجبرهای میکروفی پوشش داده شده با گرافن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We investigate graphene-covered microfibre (GCM) waveguides, and analyse the microfibres' evanescent field distributions in different diameters and lengths by numerically simulation. According to the simulation results, we designed a graphene-based all-optical modulator using 980 nm and Amplified Spontaneous Emission (ASE) lasers, employing the microfibre's evanescent field induced light-graphene interaction. We studied the modulation effect that is influenced by the microfibre's diameter, number of graphene layers, and effective graphene length. Compared to a single graphene layer of shorter length, the double graphene layer with longer length presents stronger absorption and higher modulation depth. Using a 2-μm diameter microfibre covered by ∼0.3 cm double graphene sheets, we achieved a modulation depth of 8.45 dB. This modulator features ease of fabrication, low cost, and a controllable modulation depth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 410, 1 March 2018, Pages 604-608
نویسندگان
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