title: Solid-state-based laser system as a replacement for Ar+lasers.
abstract: We report on a solid-state-based laser system at 1028 nm. The light is generated by a diode laser seeded ytterbium fiber amplifier. In two build-up cavities, its frequency is doubled and quadrupled to 514 nm and 257 nm, respectively. At 514 nm, the system delivers up to 4.7 W of optical power. In the fourth harmonic, up to 173 mW are available limited by the nonlinear crystal. The frequency of the laser is mode-hop-free tunable by 16 GHz in 10 ms in the UV. Therefore, the system is suitable as a low maintenance, efficient, and tunable narrowband replacement for frequency doubled Ar+laser systems.
authors.forename: Tobias
authors.initials: T
authors.lastname: Beck
authors.forename: Benjamin
authors.initials: B
authors.lastname: Rein
authors.forename: Fabian
authors.initials: F
authors.lastname: Sörensen
authors.forename: Thomas
authors.initials: T
authors.lastname: Walther