10 July 2017 Low bend loss photonic crystal fiber in Ga–Sb–S-based chalcogenide glass for nonlinear applications: design and analysis
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Abstract
A photonic crystal fiber (PCF) structure in Ga–Sb–S-based chalcogenide glass has been designed for nonlinear applications. The propagation characteristics of the designed structure have been investigated by employing COMSOL multiphysics software based on a full-vectorial finite element method. The proposed PCF structure possesses a nonlinear coefficient as high as 14.92  W−1 m−1 with the effective mode area of 3.37  μm2 at the operating wavelength of 1.55  μm. The proposed structure exhibits a flat and low dispersion value between spectral spanning 2.4 and 2.7  μm with a maximum dispersion variation of 20  ps/nm km. To the best of our knowledge, the PCF design is investigated for first time in Ga–Sb–S-based chalcogenide glass. The structure possesses a zero dispersion wavelength value at 2.6  μm. The structure is a promising candidate for nonlinear applications, such as midinfrared supercontinuum generation, slow-light generation, and midinfrared fiber lasers.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Jiten Boruah, Jiten Boruah, Than Singh Saini, Than Singh Saini, Ravindra Kumar Sinha, Ravindra Kumar Sinha, } "Low bend loss photonic crystal fiber in Ga–Sb–S-based chalcogenide glass for nonlinear applications: design and analysis," Journal of Nanophotonics 11(3), 036002 (10 July 2017). https://doi.org/10.1117/1.JNP.11.036002 . Submission: Received: 4 May 2017; Accepted: 15 June 2017
Received: 4 May 2017; Accepted: 15 June 2017; Published: 10 July 2017
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