کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
734139 893393 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large-signal analysis of analog intensity modulation of semiconductor lasers
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Large-signal analysis of analog intensity modulation of semiconductor lasers
چکیده انگلیسی

Large-signal analog intensity modulation of semiconductor lasers (SLs) is characterized based on numerical integration of the rate equations. The modulation dynamics are classified into seven types with regular and irregular signals. The classification is made in terms of the time trajectory of the laser intensity, phase portrait, and fast Fourier transform (FFT) spectrum. The operating region of each type is defined in a diagram of the modulation index versus modulation frequency. The accuracy of applying the approximate small-signal analysis to study analog modulation is assessed. The validity of identifying the dynamic types by the large-signal modulation response is examined. The laser emits continuous and regular signals under weak modulation. When the modulation index exceeds one half, the laser emits picosecond-pulses. Under strong modulation with frequencies around the relaxation frequency, both continuous and pulsed signals exhibit period-doubling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 40, Issue 6, September 2008, Pages 809–819
نویسندگان
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