| 摘要 |
An optical fiber includes a central core, which has a radius r1 and a refractive index n1, and a surrounding optical cladding, which has a refractive index n2 such that n2<n1 and 0.31%<((n1−n2)÷n2)<0.55%. The optical cladding has at least five holes. These holes, which are positioned between about 9 microns and 17 microns from the central core, have a radius rh such that 0.5r1≦̸rh≦̸r1.
|
