Work

310 mJ, 1 kHz, 700 fs for 1030 nm thin-disk regenerative amplifier

Year: 2026

Type: article

Abstract: We present the Dira 300-1 series, a next generation of Ytterbium-doped (Yb) thin-disk based regenerative amplifiers operating at 1030 nm central wavelength developed at TRUMPF Scientific Lasers. To maximize the energy, the amplifier is equipped with two diode pumped Yb-doped thin-disk active mirrors. The system can be set at 1 kHz, 2 kHz, or 3 kHz repetition rates delivering respectively 310 mJ, 250 mJ, or 150 mJ laser pulses after compression. At all repetition rates the amplifier exhibits comparable pulse-to-pulse energy stability < 1% rms. The pulse duration is shorter than 700 fs and the beam quality factor (M²) is below 1.4 for all configurations. The Dira 300-1 system offers external-trigger synchronization and true turn-key operation with a warm-up time below 20 minutes, enabling stable, hands-off use in demanding experimental settings.

Source: Optics Express

DOI: 10.1364/oe.595511