Design of ultra-flattened nearly zero dispersion and ultrahigh non-linear slot microfibres with ultrahigh birefringence |
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| Authors: | Jianfei Liao Tianye Huang Xiaoxing Wei Xing Xiao Chunxiang Zeng |
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| Affiliation: | 1. School of Physics and Electronic Information, Gannan Normal University, Ganzhou, China;2. School of Mechanical Engineering and Electronic Information, China University of Geosciences (Wuhan), Wuhan, China |
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| Abstract: | We proposed a new simple design of microfibre employing an elliptical silica rod in the centre of fibre core region as a slot core for the purpose of controlling the chromatic dispersion properties of the microfibre and enhancing the performance of non-linearity and birefringence. The simulation results show that the proposed slot microfibre has ultra-flattened near-zero dispersion of 0.94 ps/(nm km) for quasi-TE mode over a 50-nm wavelength range, ultrahigh birefringence up to the order of 10?1, and ultrahigh non-linear coefficients of 38.35 and 37.92 W?1 m?1 for the fundamental quasi-TE mode and quasi-TM mode at the wavelength of 1.55 μm. The outstanding advantage of this new design is that nearly zero ultraflattened dispersion, ultrahigh modal birefringence and ultrahigh non-linearity can be realized simultaneously simply using a slot fibre core. Benefiting from its excellent performance, the proposed slot microfibre will have great potential for all-optical signal processing applications. |
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| Keywords: | Birefringence non-linearity chromatic dispersion slot microfibre |
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