Abstract
A THz hollow-core Bragg waveguide with discontinuous support bridges in both radial and axial directions is proposed. The influence of the support bridges on the transmission loss of the waveguide is demonstrated numerically. The proposed waveguide shows confinement loss two orders of magnitude lower than that of the Bragg waveguide with conventional support bridges. A waveguide sample is fabricated by 3D printing technology, and the experimental results show that the transmission loss is in agreement with that of the simulation results. It is also demonstrated that the transmission loss of the fabricated waveguide is mainly determined by the large absorption loss of the waveguide material used in the experiment.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Li-Sha Ding, Zhe-Yan Dong, Zi-Jie Dai, and Ming-Yang Chen
Appl. Opt. 63(3) 757-761 (2024)
Lin Li, Dongfeng Lin, Fanchao Meng, Yiming Zhao, Yiping Cui, Yin Cao, Hongwei Liu, Hongqian Mu, Yingli Niu, Jingwen He, and Sheng Liang
Appl. Opt. 62(21) 5778-5785 (2023)
Jingwen Li, Kathirvel Nallappan, Hichem Guerboukha, and Maksim Skorobogatiy
Opt. Express 25(4) 4126-4144 (2017)