Research report 2017 - Max Planck Institute for the Science of Light
Helically twisted photonic crystal fibres
Russell, Philip St.J.; Beravat, Ramin; Frosz, Michael H.; Wong, Gordon K. L.
„Photonische Kristallfasern“ & TDSU „Faserherstellung und Glasstudio“
SummaryPhotonic crystal fibres (PCF) are strands of glass, not much thicker than a human hair, with a lattice of hollow channels running along the fibre. If they are continuously twisted in their production, they resemble a multi-helix. Twisted PCFs show some amazing features, from circular birefringence to conservation of the angular momentum. The biggest surprise, however, is the robust light guidance itself, with no visible fibre core. The basis for this are forces which, like gravitation, are based on the curvature of space.