Microstructured index-guiding fibers with large cladding holes for evanescent field chemical sensing

摘要

Design, fabrication and application of small solid-core microstructured optical fibers with large cladding holes for evanescent field chemical sensing of gases and liquids will be presented. Such steering-wheel fiber structures give a high mode-field overlap in the holey region, they show low losses over a broad spectral range and they are easier to fabricate than hollow-core bandgap-guiding photonic crystal fibers.