Carbon disulphide ( CS 2 ) enriched photonic crystal fiber for nonlinear application: a FEM scheme
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Carbon disulphide (CS2) enriched photonic crystal fiber for nonlinear application: a FEM scheme Bikash Kumar Paul1,2,3 · Kawsar Ahmed2,3 · Mst. Nargis Aktar3 Received: 30 November 2019 / Accepted: 15 April 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract In this letter, a numerical investigation of the Carbon disulfide ( CS2 ) embedded photonic crystal fiber has been reported. Numerical results incurred by using finite element method. A circular perfectly matched layer is used to simulate the design. It indicates high Kerr nonlinearity of 13,667 W−1 km−1 at the operating wavelength 𝜆 = 1000 nm. In addition, effective mode area, confinement factor, numerical aperture, power fraction, dispersion and V-parameter have been also studied. Geometric parameters have been also tuned to observe optical characteristics over the specified domain of operating wavelength. The model shows ultrahigh negative dispersion profile of − 254.67 ps/(nm km) at 𝜆 = 1000 nm. Therefore excellent optical performances of the suggested model enables it to be used in parametric amplification, polarization maintaining nonlinear signal processing, optical nonlinear sensor, super-continuum spectrum generation, optical coherence tomography and so on. Keywords Carbon disulfide · Dispersion · FEM scheme · Photonic crystal fiber · Nonlinearity · Numerical aperture
1 Introduction Fiber optic technology becoming more mature and popular in recent decades due to intense focus of engineers, scientist, researchers. Optical science and engineering is one of basic research area. As consequence of many innovations have been already done. Photonic crystal fiber (PCF) is one of them and it was first introduced by Russel et al. in 1992 (Knight et al. 1996; Birks et al. 1997). PCF is a type of micro structured optical * Kawsar Ahmed [email protected]; [email protected] Bikash Kumar Paul [email protected] 1
Department of Software Engineering, Daffodil International University, Sukrabad, Dhanmondi, Dhaka 1207, Bangladesh
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Group of Bio‑photomatix, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh
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Department of Information and Communication Technology, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh
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fiber where two air cavities are arranged in two dimensions (2D). These air cavities play the role of dielectric constant. PCF are getting more popularity due to some novel characteristics such as endlessly single mode, high birefringence, low confinement loss, high nonlinearity, and ultrahigh negative dispersion and so on (Poli et al. 2007). Among these novel characteristics, high nonlinearity is urgently required for super continuum generation, parametric amplification, four wave mixing and other applications (Xu et al. 2012; Monfared et al. 2013). Nonlinearity is one of the most interesting characteristics among all fundamental properties of PCFs. If air cavities in the clad
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