The University of Regensburg (client) plans to procure a new ultrashort pulse laser system with repetition rates in the double-digit megahertz range in the Department of Physics at the "Atomic-Scale Science on Insulators Group". The diode-pumped laser in free-beam optics will be based on a laser medium made of chromium-doped zinc sulfide and emit femtosecond pulses at a central wavelength of approx. 2.2 μm. Including the corresponding spectral broadening, the device should achieve pulse durations of guaranteed less than 10 fs at a pulse energy of at least 10 nJ. The carrier-envelope phase of the emitted pulses should be actively stabilized and freely selectable. The most important requirements include a TEM00 fashion profile and a spectrum that covers more than one optical octave. Equally important are maximum stability in amplitude and phase. Among other things, the laser will be used with a differential frequency generation developed in Regensburg to generate phase-rigid laser pulses in the mid-infrared.

Laser system