Design and fabrication of all-normal dispersion nanohole suspended-core fibers
in: Journal of the Optical Society of America B-Optical Physics (2019)
Suspended-core fibers with a sub-micron diameter hole in the core offer interesting new possibilities in dispersion management, light confinement and nonlinear applications. We discuss the geometric demands and options of fused silica based nanohole suspended-core fibers suitable for all-normal dispersion and compare them to the possibilities provided by photonic crystal fibers. We show that nanohole suspended-core fibers extend the options photonic crystal fibers provide, enabling all-normal dispersion further into the near infrared. In addition, fabrication conditions are evaluated, a reliable fabrication scheme is outlined and all-normal dispersion nanohole suspended-core fibers are demonstrated.