Accepted and Presented Articles of OPSI Conferences
مقالات پذیرفته و ارائه شده در کنفرانسهای انجمن اپتیک و فوتونیک ایران
ICOP & ICPET _ INPC _ ICOFS
Basic Sciences
http://opsi.ir
1
admin
1126-3278
10
8
7
14
8888
13
fa
jalali
1394
11
1
gregorian
2016
2
1
22
مجموعه مقالات پذیرفته و ارائه شده در بیست و دومین کنفرانس اپتیک و فوتونیک ایران
online
1
fulltext
en
A new photonic crystal directional coupler switch based on slow light in coupled-cavity waveguides
A new photonic crystal directional coupler switch based on slow light in coupled-cavity waveguides
تخصصی
Special
پژوهشي
Research
<p>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.</p>
<p>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.</p>
Coupled-cavity waveguide, Directional coupler, Photonic Crystal, Slow light
Coupled-cavity waveguide, Directional coupler, Photonic Crystal, Slow light
970
973
http://opsi.ir/browse.php?a_code=A-10-1-988&slc_lang=en&sid=1
Meisam
Rezapanah
Meisam
Rezapanah
m.rezapanah1369@gmail.com
10031947532846004407
10031947532846004407
No
Shiraz University
Shiraz University
Shahram
Bahadori-Haghighi
Shahram
Bahadori-Haghighi
sbahadori@shirazu.ac.ir
10031947532846004408
10031947532846004408
No
Shiraz University
Shiraz University
Sajad
Dehghani
Sajad
Dehghani
sdehghani@shirazu.ac.ir
10031947532846004409
10031947532846004409
No
Shiraz University
Shiraz University
Rahim
Ghayour
Rahim
Ghayour
rghayour@shirazu.ac.ir
10031947532846004410
10031947532846004410
Yes
Shiraz University
Shiraz University