International Journal of Optics and Photonics
نشریه انجمن اپتیک و فوتونیک ایران
IJOP
Basic Sciences
http://ijop.ir
1
admin
1735-8590
2538-4007
10.29252/ijop
1735-8590
en
jalali
1396
10
1
gregorian
2018
1
1
12
1
online
1
fulltext
fa
Supercontinuum Generation in a Highly Nonlinear Chalcogenide/ MgF2 Hybrid Photonic Crystal Fiber
تخصصي
Special
پژوهشي
Research
<p dir="ltr" style="text-align: justify;">In this paper, we report the numerical analysis of a photonic crystal fiber (PCF) for generating an efficient supercontinuum medium. For our computational studies, the core of the proposed structure is made up of As<sub>2</sub>Se<sub>3</sub> and the cladding structure consists of an inner ring of holes made up As<sub>2</sub>Se<sub>3</sub> and four outer rings of air holes in MgF<sub>2</sub>. The proposed structure provides excellent nonlinear coefficient and dispersion optimization. For the analysis, finite difference frequency domain (FDFD) method is employed. Because of the high nonlinear refractive index of the chalcogenide glass and high difference between the refractive index of the core and the cladding, a small effective mode area of 0.68 μm<sup>2</sup> is obtained. The nonlinear coefficient is 14.98 W<sup>-1</sup>m<sup>-1</sup> at the wavelength of 1.8 μm. Dispersion is almost flat from 1.6 μm up to 2.8 μm. The supercontinuum spectrum calculated ranges from 1 μm to 6 μm. The presented structure is appropriate for medical imaging, optical coherence tomography and optical communications</p>
Supercontinuum generation (SCG), chalcogenide glass, nonlinear effects, photonic crystal fiber, dispersion.
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78
http://ijop.ir/browse.php?a_code=A-10-522-1&slc_lang=fa&sid=1
Mahmood
Seifouri
Mahmood.seifouri@srttu.edu
`10031947532846002122`

10031947532846002122
No
Shahid Rajaee Teacher Training University
Mohammad Reza
Alizadeh
Mr.alizadeh@srttu.edu
`10031947532846002123`

10031947532846002123
Yes
Shahid Rajaee Teacher Training University