The FEMTOSOURCE™ scientific™ XL 500 is the flagship of an entirely novel family of high power ultrafast laser systems. This laser system will revolutionize many applications by offering a unique combination of laser output parameters. An output energy level exceeding 0.5 μJ and a pulse duration of less than 50 fs in combination with a repetition rate of greater than 5 MHz yields an unprecedented average power level of > 2.5 W and > 10 MW of peak power. The center wavelength is 800 nm.