Proposal for Highly Nonlinear Dispersion-Flattened Octagonal Photonic Crystal Fibers Razzak, S. M. Abdur ; Namihira, Yoshinori Abstract Publication: IEEE Photonics Technology Letters Pub Date: February 2008 DOI: 10.1109/LPT.2007.912986 Bibcode: 2008IPTL...20..249R