Yang, Guang-ZhongAbdelaziz, Mohamed EkTemelkuran, BurakLeber, AndreasSorin, Fabien2022-07-042022-07-042022-07-042022https://infoscience.epfl.ch/handle/20.500.14299/189086A method of manufacturing a fibre comprising a lined channel, using a draw apparatus, the method comprising: providing a preform, comprising a channel extending through the preform, to the draw apparatus; feeding a liner into the channel; heating a portion of the preform; and drawing the heated portion of the preform in order to form a fibre, wherein the liner is held within the channel of the fibre to provide a lined channel within the fibre.patentWO2022136871GB20202032974221425