Ultra-fast ۱-bit comparator using nonlinear photonic crystalbased ring resonators
Publish place: Journal of Optoelectronical Nanostructures، Vol: 4، Issue: 3
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JOPN-4-3_005
تاریخ نمایه سازی: 25 بهمن 1402
Abstract:
In this paper, a photonic crystal structure for comparing two bits has beenproposed. This structure includes four resonant rings and some nonlinear rods. Thenonlinear rods used inside the resonant rings were made of a doped glass whose linearand nonlinear refractive indices are ۱.۴ and ۱۰-۱۴ m۲/W, respectively. Using Kerr effect,optical waves are guided toward the correct output ports. In this study, plane waveexpansion and finite difference time domain methods were used for calculation ofphotonic bandgap and simulation of optical wave propagation, respectively. The size ofthe proposed structure is ۱۵۸۵ μm۲ which is more compact than the previous works.Furthermore, the obtained maximum delay time is about ۲ ps that is proper to highspeedprocessing. The normalized output power margins for logic ۰ and ۱ are calculatedas ۲۵% and ۷۱%, respectively. According to the obtained results, this structure can beused for optical integrated circuits.
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Authors
Seyyed Mohammad Hosein Jalali
Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Mohammad Soroosh
Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Gholamreza Akbarizadeh
Department of Electrical Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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