[18p-B2-1~15] 4.6 Terahertz Photonics

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)English Presentation

[18p-B2-4] Negative curvature annulus core fiber for transmission of orbital angular momentum modes in THz regime

〇(D)Ishani De¹, Vipul Rastogi^1,2 (1.Dept. of Physics, Indian Institute of Technology Roorkee, 2.Center of Photonics and Quantum Communication Technology, Indian Institute of Technology Roorkee)

Keywords:

optical fiber,orbital angular momentum modes,terahertz band

We have proposed the design of a negative curvature annulus-core fiber for transmission of 14 OAM modes from 0.3 THz to 1.1 THz frequency range. The background material of the fiber is Zeonex, and the thickness of the cladding tubes influences the number of vector modes supported. The supported vector modes have extremely low values of confinement losses between 10^{-8} to 10^{-11} dB/m and effective mode area of more than 10 mm^2.