Hollow core fibres and their applications

These are presented in this power point: various different classes of fiber (capillary, ARF and PBGF) each with relative merits and drawbacks for specific applications; significant progress made over recent years in the development of HCF technology - both in terms of understanding and fabrication; increasing array of applications, with some e.g. power delivery and high power wavelength conversion, close to commercial deployment; current losses sufficient for some niche telecoms applications to be considered; prospects for ultralow loss remain, with new fiber designs and concepts still emerging and an exciting time in the development of the field.