Optical parametric amplifiers (OPA)



Two OPAs are available within the ALLS infrastructure. They allow converting the fundamental wavelength (800 nm) from the Ti:Sa lasers through different parametric processes. It gives continuous tunability from 200 nm to 20 microns in the femtosecond regime with different efficiencies.



One OPA is pumped with the 2.5 kHz laser system and another one is pumped using the 100 Hz beam.