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:: جلد 22 - مجموعه مقالات پذیرفته و ارائه شده در بیست و دومین کنفرانس اپتیک و فوتونیک ایران ::
ICOP & ICPET سال22 صفحات 970-973 برگشت به فهرست نسخه ها
A new photonic crystal directional coupler switch based on slow light in coupled-cavity waveguides
Mr Meisam Rezapanah1، Mr Shahram Bahadori-Haghighi1، Dr Sajad Dehghani2، Dr Rahim Ghayour* 3
1- Master of Science Shiraz University
2- Assistant Professor Shiraz University
3- Professor Shiraz University
چکیده:   (1128 مشاهده)

Optical switch is one of the most important components in optical communication systems. In this paper, a new photonic crystal (PhC) directional coupler switch based on slow light in coupled-cavity waveguides is proposed. Slow light phenomenon is usually applied in nonlinear optics and can be estimated by slope of dispersion curve of the PhC waveguides. By introducing this structure, the group velocity of light at the wavelength of 1550nm is obtained as low as 36 times slower than the velocity of light in vacuum. As a consequence, a short switching length of 13.6 μm is achieved for a refractive index change of 0.02 in the coupling region. The device is simulated by finite-difference time-domain (FDTD) method and the results show that the available bandwidth of the switch is approximately 9nm . Maximum transmission of 80% is also achieved in both linear and nonlinear cases at cross and bar ports, respectively.

واژه‌های کلیدی: Coupled-cavity waveguide، Directional coupler، Photonic Crystal، Slow light
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نوع مطالعه: پژوهشي | موضوع مقاله: تخصصی
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Rezapanah M, Bahadori-Haghighi S, Dehghani S, Ghayour R. A new photonic crystal directional coupler switch based on slow light in coupled-cavity waveguides. ICOP & ICPET. 2016; 22 :970-973
URL: http://opsi.ir/article-1-1008-fa.html

Rezapanah Meisam، Bahadori-Haghighi Shahram، Dehghani Sajad، Ghayour Rahim. A new photonic crystal directional coupler switch based on slow light in coupled-cavity waveguides. کنفرانس اپتیک و فوتونیک ایران و کنفرانس مهندسی و فناوری فوتونیک ایران. 1394; 22 () :970-973

URL: http://opsi.ir/article-1-1008-fa.html



جلد 22 - مجموعه مقالات پذیرفته و ارائه شده در بیست و دومین کنفرانس اپتیک و فوتونیک ایران برگشت به فهرست نسخه ها
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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