Extruded TOPAS hollow-core anti-resonant fiber optimized for THz guidance at 0.9THz

A hollow-core anti-resonant fiber for the THz regime is proposed and demonstrated. The proposed fiber is the hexagonal core shape which is directly extruded using a conventional 3D printer. Experimental results show that by using cyclic olefin copolymer (COC), the proposed fiber design provides a low attenuation of similar to 3 dB/m at similar to 0.86 THz and similar to 15 dB/m at similar to 0.42 THz. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License.