Anti-resonant hollow core fiber

An anti-resonant hollow-core fiber, comprising:

• a fiber longitudinal axis and a fiber core radius R_Faser,
• a fiber cladding which comprises a cladding inner bore,
• a number of anti-resonance units,
• each comprising an ARU outer unit and an ARU inner unit,
• wherein the circular-arc-like ARU outer unit and the circular-arc-like ARU inner unit are interconnected along two seam lines in such a way that the ARU inner unit projects at least partially into a first interior space of the ARU outer unit,
• wherein the anti-resonance units are mutually spaced and are arranged so as to have no contact with one another at desired positions on a cladding inner side,
• wherein
• the ARU outer unit has a first circle radius FA_R and a first center angle FA_MW,
• the ARU inner unit has a second circle radius FI_R and a second center angle FI_MW,
• wherein an amount of a deviation of the first circle radius FA_R from the second circle radius FI_R is less than 10% of the first circle radius FA_R,
• wherein
• the first center angle FA_MW is less than 345° and greater than 275°, and
• the second center angle FI_MW is less than 195° and greater than 40°,
• wherein in at least one anti-resonance unit
• an ARU arc unit is arranged in the first interior space,
• the ARU arc unit is circular,
• has a radius FB_R, and
• the ARU arc unit is connected to the ARU inner unit along a contact seam,
• wherein
• for the ratio of twice the radius of the ARU arc unit FB_R to the fiber core radius R_Faser, the following applies
• 2
• *
• FB_R
• R_Faser
• =
• [
• 0
• .
• 7
• ;
• 1
• .
• 7
• ]
• .