Injection-seeded high-power Yb:YAG thin-disk laser stabilized by the Pound-Drever-Hall method
preprint
posted on 2023-06-15, 09:28 authored by Manuel Zeyen, Lukas Affolter, Marwan Abdou Ahmed, Thomas Graf, OGUZHAN KARA, Klaus Kirch, Adrian Langenbach, Miroslaw Marszalek, Francois Nez, Ahmed Ouf, Randolf Pohl, Siddharth Rajamohanan, Pauline Yzombard, Aldo Antognini, Karsten SchuhmannWe demonstrate an injection-seeded thin-disk Yb:YAG laser at 1030 nm, stabilized by the Pound-Drever-Hall (PDH) method. We modified the PDH scheme to obtain an error signal free from Trojan locking points, which allowed robust re-locking of the laser and reliable long-term operation. The single-frequency pulses have 50 mJ energy (limited to avoid laser-induced damage) with a beam quality of M² < 1.1 and an adjustable length of 55-110 ns. Heterodyne measurements confirmed a spectral linewidth of 3.7 MHz. The short pulse build-up time (850 ns) makes this laser suitable for laser spectroscopy of muonic hydrogen, pursued by the CREMA collaboration.
