Large-mode-area leaky optical fibre fabricated by MCVD
A large mode area single-mode optical fibre based on leaky mode filtering was prepared by MCVD. The cladding structure discriminates the fundamental mode from the higher order ones. A preliminary version has 25-$μ$m core diameter and 0.11 numerical aperture. A Gaussian-like mode with 22-$μ$m MFD is observed after 3-m propagation, in agreement with modeling.
physics.optics↗