Transmission of submillimeter laser beams along hollow-core dielectric waveguides

Theoretical and experimental investigations are reported of the propagation of axisymmetric linearly polarized laser radiation beams along hollow-core dielectric waveguides. The conditions for transmission with minimum distortion of the complex amplitude and minimum excitation losses are established for beams in the form of Gaussian–Laguerre modes. A scaling relationship is obtained for the attenuation constant of the EH₁₁ mode in glass waveguides acting as transmission lines and for laser cells handling submillimeter wavelengths.