We have studied the broadband mid-IR supercontinuum generation in a lead-silicate tapered microstructured fiber for
femto-second input pulses at 1550 nm. The supercontinuum generated extends from ~1000 to ~ 5000 nm for a suitably
designed tapered fiber. The coherence properties of the supercontinuum depends on the input pulse parameters. It is
possible to generate perfectly coherent supercontinuum with a flat broadened spectrum extending to ~5000 nm in this fiber taper.