Hollow-core photonic bandgap fibers and methods of manufacturing the same

摘要

A hollow-core photonic bandgap fiber having a hollow core and a cladding which surrounds the core at a core boundary and comprises a lattice or network of struts and interstitial nodes which together define an array of cavities, wherein a ratio between a difference in a length of a longest and shortest pitch spacing of the nodes 109 at the core boundary to an average pitch spacing at the core boundary is less than about 0.3. Numerous other related inventions are disclosed.