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ICOP & ICPET 2015, 21 - : 1651-1654 Back to browse issues page
Modelling of zero-dispersion wavelength decreasing tapered photonic crystal fibers
Hassan Pakarzadeh Dr. * 1, S.Mostafa Rezaei Mr.1
1- Shiraz University of Technology
Abstract:   (1675 Views)
In this paper, we investigate for the first time the dispersion properties of photonic crystal fibers (PCFs) with a continuously-decreasing zero-dispersion wavelength (ZDW) along their length, via solving the eigen-value equation of the guided mode using the finite-difference frequency domain (FDFD) method. Since the structural parameters such as air-hole diameter d and the pitch Λ of the microstructured cladding change along the tapered PCFs, dispersion properties change with the fiber length as well. Therefore, it is important to know the exact behaviour of such characteristics along z which is necessary for nonlinear optics applications. We simulate the z-dependency of the ZDW along the tapered PCFs for various d and Λ and propose useful analytical relations for describing such characteristics. The results of this paper which are in a very good agreement with the available experimental ones, are important for simulating pulse propagation as well as investigating nonlinear effects such as supercontinuum generation and parametric amplification in tapered PCFs.
Keywords: Photonic crystal fiber, finite-difference frequency domain, tapered fiber, dispersion.
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Type of Study: Research | Subject: Special
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Pakarzadeh H, Rezaei S. Modelling of zero-dispersion wavelength decreasing tapered photonic crystal fibers. ICOP & ICPET. 2015; 21 :1651-1654
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انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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