مشخصات پژوهش

عنوان	Optical analysis of mushroom-type traveling wave electroabsorption modulatorsusing full-vectorial finite difference method
نوع پژوهش	مقاله ارائه شده کنفرانسی
کلیدواژه‌ها	Electroabsorption , Full-vectorial Finite difference method , Mushroom-type TWEAM , Traveling wave modulator
چکیده	Larger width of P-cladding layer in p-i-n waveguide of traveling wave electroabsorption modulator (TWEAM) results in lower resistance and microwave propagation loss which provides an enhanced high speed electro-optical response. In this paper, a full-vectorial finite-difference-based optical mode solver is presented to analyze mushroom-type TWEAM. The important parameters in the high-frequency TWEAM design such as optical effective index and transverse mode confinement factor are calculated. The modulation response of mushroom-type TWEAM is calculated by considering interaction between microwave and optical fields in waveguide and compared with conventional ridge-type TWEAM. The calculated 3dB bandwidths for ridge-type and mushroom-type TWEAM are about 139 GHz and 166 GHz for 200 mum and 114 GHz and 126 GHz for 300 mum waveguide length, respectively.
پژوهشگران	محمد رزاقی (نفر چهارم)، محمد کاظم مروج فرشی (نفر سوم)، وحید احمدی (نفر دوم)، کامبیز عابدی (نفر اول)