27 April 2018 Low-loss polarization-maintaining terahertz fiber based on central air hole movements
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Abstract
We report a type of single-hole core photonic crystal fiber for low-loss polarization-maintaining terahertz (THz) wave guidance. Simulation results show that high birefringence at a level of 10  −  2 can be obtained by a design of minor position adjustment of the central air hole. Low effective material loss can be achieved because of the introduced central air hole. The strategy of the central air hole movements is also applicable for the three-hole core THz photonic crystal fibers. Other transmission characteristics including single-mode condition, power fraction, confinement loss, and dispersion were discussed in detail. It is quite clear that the proposal facilitates the fabrication process due to the simple structure.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zhiqing Wu, Qingzhi Li, Handing Xia, Zhaohua Shi, Xiaoyan Zhou, Qinghua Deng, Weidong Wu, "Low-loss polarization-maintaining terahertz fiber based on central air hole movements," Optical Engineering 57(4), 046113 (27 April 2018). https://doi.org/10.1117/1.OE.57.4.046113 Submission: Received 6 November 2017; Accepted 10 April 2018
Submission: Received 6 November 2017; Accepted 10 April 2018
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