Photonic band gap guidance in optical fibers
A fundamentally different type of optical waveguide structure is demonstrated, in which light is confined to the vicinity of a low-index region by a two-dimensional photonic band gap crystal. The waveguide consists of an extra air hole in an otherwise regular honeycomb pattern of holes running down the length of a fine silica glass fiber. Optical fibers based on this waveguide mechanism support guided modes with extraordinary properties.
Knight
JC
Optoelectronics Group, Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Broeng
J
Birks
TA
Russell
PSJ