Efficient near-infrared supercontinuum generation in tellurite holey fiber pumped 320nm within the normal dispersion regime

摘要

We demonstrate the generation of a 1.1-1.7µm supercontinuum in a 1.3m long air suspended-core tellurite holey-fiber with a nominal zero-dispersion wavelength of ~1.38µm. The fiber is pumped at 1.06µm with a 20ps pulsed fiber laser. The high Raman gain-coefficient of tellurite glass is attributed a key role in the supercontinuum generation.