A novel ultrahigh birefringent hole-assistant microstructured optical fiber with low confinement loss |
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Authors: | Xiaoling Tan Youfu Geng |
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Affiliation: | a Department of Physics, Faculty of Science, Ningbo University, Ningbo 315211, China b College of Physics Science and Technology, Shenzhen Key Laboratory of Sensor Technology, Shenzhen University, Shenzhen, China |
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Abstract: | A novel hole-assistant microstructured optical fiber with a rectangle-like core and four elliptical holes as cladding is proposed. By employing a full-vector finite element method, the modal birefringence and confinement loss are numerically investigated, and the results show that in such a structure, an ultrahigh modal birefringence of 2.91×10−2 and a low confinement loss (<1 dB/km) can be simultaneously obtained at excited wavelength of 1.55 μm. It is significant that such a microstructured optical fiber is easily fabricated with its simple structure and exhibits improved performance. |
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Keywords: | Microstructured optical fibers Modal birefringence Confinement loss |
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