A lead silicate holey fiber with /spl gamma/=1860 W/sup -1/km/sup -1/ at 1550 nm

Abstract

We report the fabrication of lead silicate holey fibers with record nonlinearities of up to 1860 W/sup -1/m/sup -1/ at 1.55 /spl mu/m. Broadband supercontinuum generation is obtained in a dispersion optimized fiber variant at /spl sim/100 pJ pulse energies for 1.06 /spl mu/m pumping.