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شبیه‌سازی و تحلیل دروازه منطقی تمام نوری NOT توسط سازوکار XPM با استفاده از تداخل‌سنج ماخ زندر مبتنی بر تقویت‌کننده نوری نیمه‌هادی بلور فوتونی | ||
| الکترومغناطیس کاربردی | ||
| مقاله 7، دوره 11، شماره 2 - شماره پیاپی 27، مهر 1402 اصل مقاله (1.19 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| آریز نصرت پور* 1؛ خسرو حیدریان2 | ||
| 1گروه مهندسی برق، دانشکده فنی و مهندسی، دانشگاه آزاد اسلامی واحد سنندج، ایران. | ||
| 2گروه مهندسی برق، دانشکده فنی و مهندسی، دانشگاه آزاد اسلامی واحد سنندج، ایران | ||
| تاریخ دریافت: 21 فروردین 1402، تاریخ بازنگری: 01 مهر 1402، تاریخ پذیرش: 19 مهر 1402 | ||
| چکیده | ||
| در این مقاله شبیه‌سازی و تحلیل دروازه منطقی تمام نوری NOT با استفاده از تقویت‌کننده نوری نیمه‌هادی بلور فوتونی (PC-SOA) مبتنی بر تداخل‌سنج ماخ زندری و سازوکار غیرخطی مدوله سازی فاز متقابل انجام‌گرفته است. توالی پالس نوری ورودی مورداستفاده در طراحی از نوع بازگشت به صفر است. باانرژی قطار پالس ورودی 4fJ و جریان تزریق 1mA، مناسب‌ترین حالت برای دروازه منطقی NOT با نرخ بیت 80Gbps به‌دست‌آمده است. برای حل معادلات نرخ و انتشار از روش عددی تفاضل محدود استفاده‌شده است. همچنین در این مقاله برای عملکرد مناسب و بازدهی بهتر دروازه منطقی تمام نوری NOT، پارامترهای اثر الگو ، نسبت خاموشی، بازده تبدیل ، نسبت تضاد، ضریب کیفیت و بازیابی بهره به‌صورت هم‌زمان موردبررسی قرارگرفته است. پارامتر مهم دیگری که در بهبود PC-SOA و همچنین مقدار نرخ بیت نقش اساسی دارد، طول عمر حامل است. در انتشارات قبلی ارائه‌شده این پارامتر در معادلات PC-SOA به‌صورت مقدار ثابت در نظر گرفته‌شده است بنابراین می‌تواند خطای نتایج را تا حدی افزایش دهد. اما در این مقاله، ساختار هر PC-SOA و مواد استفاده‌شده در آن براساس یک مدل تجربی و معتبر است. درنتیجه، محاسبات طول عمر حامل که وابسته به تغییرات چگالی حامل است با دقت محاسبه می‌شود. همچنین با توجه به نتایج به‌دست‌آمده، PC-SOA عملکرد منطقی بهتری نسبت به SOA معمولی از خود نشان می‌دهد و به دلیل طول بسیار کمتر از SOA، می‌تواند کاندیدای بسیار مناسبی برای مدارهای نوری مجتمع باشد. | ||
| کلیدواژه‌ها | ||
| تقویت‌کننده نوری نیمه‌هادی بلور فوتونی؛ تداخل‌سنج ماخ زندر؛ اثر الگو؛ بازده تبدیل؛ نسبت تضاد؛ ضریب کیفیت و نسبت خاموشی | ||
| عنوان مقاله [English] | ||
| Simulation and analysis of the all-optical NOT logic gate by XPM mechanism using Mach-Zehnder interferometer based on photonic crystal semiconductor optical amplifier | ||
| نویسندگان [English] | ||
| Arez Nosratpour1؛ khosro Heydarian2 | ||
| 1Department of Electrical Engineering, Sanandaj Branch, Islamic Azad university, Sanandaj, Iran | ||
| 2Department of Electrical Engineering, Sanandaj Branch, Islamic Azad university, Sanandaj, Iran | ||
| چکیده [English] | ||
| In this paper, the simulation and analysis of the all-optical NOT logic gate using photonic crystal semiconductor optical amplifier (PC-SOA) based on Mach-Zehnder interferometer and nonlinear cross-phase modulation (XPM) mechanism is performed. The input light pulse sequence used in the design is RZ (Return to Zero). With 4fJ input pulse train energy and 1mA injection current, the most suitable mode for NOT logic gate with 80Gbps bit rate is obtained. The finite difference method (FDM) is used to solve the rate and propagation equations. Also, in this paper for proper performance and better efficiency of the all-optical NOT logic gate, pattern effect(PE) parameters, conversion efficiency (CE), extinction ratio (ER), contrast ratio(CR), quality factor(QF), and gain recovery are simultaneously examined. Another important parameter that plays a vital role in improving PC-SOA as well as the bit rate value is the carrier lifetime. In previous publications, this parameter has been considered as a constant value in PC-SOA equations. Therefore, it can increase the error of the results to some extent. But in this paper, the structure of each PC-SOA and the materials used in it are based on an experimental and valid model. As a result, the carrier lifetime calculations that depend on the carrier density changes are accurately calculated. Also, according to the obtained results, PC-SOA shows a better logical performance than conventional SOA, and due to its much shorter length than SOA, it can be a very suitable candidate for integrated optical circuits. | ||
| کلیدواژه‌ها [English] | ||
| Photonic crystal semiconductor optical amplifier, all-optical NOT logic gate, Mach-Zehnder interferometer, pattern effect, quality factor, contrast ratio, conversion efficiency, and extinction ratio | ||
| مراجع | ||
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