10-Minute Tech Talk

Hollow-Core Optical Fiber

Confining light to an air core fiber is not easily done using traditional guidance methods such as total internal reflection. In this presentation we demonstrate guidance in air using photonic band gap guidance and anti-resonant rings. Single-mode hollow-core optical fibers with large cores, resulting in low loss are shown. We also present the attenuation dependence in these fibers and how, using fibers that guide light in air, we are able extend the wavelength range of silica fibers out to the infra-red.

Presenter:

Brian Mangan Member of Technical Staff, OFS

Brian received his PhD in physics in 2000 from the university of Bath in the UK. During his Ph.D. he played a leading role in building the fiber drawing facility at the university of bath and demonstrating the first hollow core photonic band gap fiber. After completing his Ph.D. he co-founded a BlazePhotonics, a start-up company using venture capital money, with his colleagues at the university. At BlazePhotonics Brian worked to develop the photonic crystal fiber technology where he played a key part in fabricating the lowest loss hollow core fiber, a record that still exists today. BlazePhotonics was bought by a Danish start-up company, Crystal Fiber (now NKT Photonics). Brian spent a further four years working at Crystal Fiber to transfer the technical knowledge from BlazePhotonics and continue to develop the photonic crystal fiber technology. Brian joined the OFS Labs team in 2011 and works on several projects including the hollow core program. Brian is the author of over 100 publications and parents.



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