The guidance mechanism and numerical simulation of THz polymer hollow-core photonic crystal fiber

Ran Wang; Jianquan Yao; Degang Xu; Jingli Wang; Kai Zhong; Peng Wang

doi:10.1117/12.868606

4 November 2010 The guidance mechanism and numerical simulation of THz polymer hollow-core photonic crystal fiber

Ran Wang, Jianquan Yao, Degang Xu, Jingli Wang, Kai Zhong, Peng Wang

Proceedings Volume 7854, Infrared, Millimeter Wave, and Terahertz Technologies; 78543G (2010) https://doi.org/10.1117/12.868606
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

With the development of terahertz (THz) technology, an efficient propagation waveguide is essential for the construction of compact THz devices. Hollow core photonic crystal fiber with a large air core at the center and a cladding formed by a periodic arrangement of polymer tubes has been demonstrated in this paper. The guidance mechanism is based on anti-resonant reflection from struts of solid material in the cladding. Since most electromagnetic field is dominated in the air core, hollow core fibers have obvious advantages in lower absorption. The propagation characteristics of the fiber, such as the mode field distribution and the loss coefficient are numerically investigated through the finite element method. The result shows that an effective way to reduce the absorption is to enlarge the central air core and reduce the overlap between the field and material.

Citation Download Citation

Ran Wang, Jianquan Yao, Degang Xu, Jingli Wang, Kai Zhong, and Peng Wang "The guidance mechanism and numerical simulation of THz polymer hollow-core photonic crystal fiber", Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78543G (4 November 2010); https://doi.org/10.1117/12.868606

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KEYWORDS

Terahertz radiation

Waveguides

Cladding

Finite element methods

Absorption

Photonic crystal fibers

Polymers

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