End-sealing short dispersion micromanaged tapered holey fibers by hole-collapsing

We have recently shown that fiber dispersion can be manipulated on a sub-millimeter scale, and discussed its importance in production of low-noise supercontinuum generation. In this paper, we report the fabrication of dispersion micromanaged (DMM) holey fibers that have been structurally modified to offer greater environmental stability and have reduced sensitivity towards alignment in input coupling. Our results show that end-sealed devices can be made while retaining key features of the dispersion micromanagement.