Abstract

High power visible supercontinuum source pumped by all normal dispersion picosecond Yb-doped fiber laser was demonstrated. Seed laser is operated in the normal dispersion regime, so it allows significant output power scaling while avoiding pulse breakup. The average power higher than 2 W was achieved with a spectral bandwidth of 1700 nm. The supercontinuum source will be useful for many applications including defect detection and a mask alignment in the nano-in-print lithography.

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