title: Direct diode pumped Ti:sapphire ultrafast regenerative amplifier system.
abstract: We report on a direct diode-pumped Ti:sapphire ultrafast regenerative amplifier laser system producing multi-μJ energies with a repetition rate from 50 to 250 kHz. By combining cryogenic cooling of Ti:sapphire with high brightness fiber-coupled 450nm laser diodes, we for the first time demonstrate a power-scalable CW-pumped architecture that can be directly applied to demanding ultrafast applications such as coherent high-harmonic EUV generation without any complex post-amplification pulse compression. Initial results promise a new era for Ti:sapphire amplifiers not only for ultrafast laser applications, but also for tunable CW sources. We discuss the unique challenges to implementation, as well as the solutions to these challenges.
authors.forename: Sterling
authors.initials: S
authors.lastname: Backus
authors.forename: Matt
authors.initials: M
authors.lastname: Kirchner
authors.forename: Randy
authors.initials: R
authors.lastname: Lemons
authors.forename: David
authors.initials: D
authors.lastname: Schmidt
authors.forename: Charles
authors.initials: C
authors.lastname: Durfee
authors.forename: Margaret
authors.initials: M
authors.lastname: Murnane
authors.forename: Henry
authors.initials: H
authors.lastname: Kapteyn