Data associated with ‘Asymptotically single-mode small-core terahertz Bragg fibre with low loss and low dispersion’.

These data relate to a design study of an asymptotically single-mode small-core terahertz Bragg fibre with low loss and low dispersion. A generalized half-wavelength condition, promoting the manipulation of photonic bandgap for Bragg fibre, is proposed and examined by representative cases. A significant propagation loss discrimination between the desired TE01 mode and other unwanted competing modes has been created resulting in an effectively single-mode operation in the fibre. The proposed tightly confined single-TE01-mode small-air-core Bragg fibre exhibits propagation loss and group velocity dispersion less than 1.2 dB/m and -0.6 ps/THz/cm, respectively, over the frequency range from 0.85 THz to 1.15 THz.