PHOTONIC CRYSTAL FIBRE, IN PARTICULAR SINGLE-MODE FIBRE FOR THE IR WAVELENGTH RANGE, AND METHOD FOR THE PRODUCTION THEREOF

摘要

The invention relates to a photonic crystal fibre, in particular a single-mode fibre for transmitting electromagnetic radiation in the IR wavelength range 1 µm, in particular in the wavelength range between 1 µm and 20 µm, preferably between 9 µm and 12 µm, said photonic crystal fibre comprising a light-conducting hollow core, in particular a hollow core having a diameter D, and a number of hollow bodies arranged around the light-conducting hollow core, in particular hollow tubes made of a chalcogenide glass. The invention is characterised in that the hollow body (10, 20) is arranged in such a way that the diameter D of the light-conducting hollow core is larger than the smallest wavelength to be transmitted, being preferably at least 20 µm, preferably at least 50 µm, particularly preferably at least 100 µm, being preferably in the region between 100 µm and 500 µm, in particular in the region between 150 µm and 350 µm, and the damping for the transmission of the electromagnetic radiation being 2 dB/m, in particular 1 dB/m, preferably 0.3 dB/m, in particular 0.1 dB/m.