کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1537783 996596 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
All optical Flip-Flop based on a nonlinear DFB semiconductor laser: Theoretical study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
All optical Flip-Flop based on a nonlinear DFB semiconductor laser: Theoretical study
چکیده انگلیسی

A new design of an all optical Flip-Flop is proposed. It consists of a nonlinear distributed feedback (DFB) laser. The wave guiding layer of the DFB laser consists of linear grating section followed by a nonlinear one, and both sections are separated by a phase shift section. In the OFF-state, the real part of the refractive index in the wave guiding layer forms a Bragg grating. In the ON-state, it forms a Bragg grating with a phase shift section. Optical gain is achieved by current injection in the semiconductor active layer. Nonlinearity in the nonlinear layers of the semiconductor grating was achieved by direct absorption at the edge of the absorption band (Urbach tail). Numerical simulation shows that the device switches in a nanosecond time scale.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 3, 1 February 2010, Pages 474–479
نویسندگان
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