2W/nm Peak-power All-Fiber Supercontinuum Source and its Application to the Characterization of Periodically Poled Nonlinear Crystals

摘要

We demonstrate a uniform high spectral brightness and peak power densityall-fiber supercontinuum source. The source consists of a nanosecond Ytterbiumfiber laser and an optimal length PCF producing a continuum with a peak powerdensity of 2 W/nm and less than 5 dB of spectral variation between 590 to 1500nm. The Watt level per nm peak power density enables the use of such sourcesfor the characterization of nonlinear materials. Application of the source isdemonstrated with the characterization of several periodically poled crystals.