[P-CTh1] C1. Solid State, Fiber, and Other Laser Sources

[P-CTh1-01] High power visible supercontinuum generation pumped by all normal dispersion picosecond Yb-doped fiber laser

*Yukihiro Inoue¹, Juri Ogawa¹, Ryosuke Kaneda¹, Takeshi Higashiguchi¹ (1. Utsunomiya University (Japan))

[Presentation Style] Online

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.