This high-power femtosecond fiber laser delivers up to 1.5 W of average output power at 780 nm, with pulse durations down to 100 fs. It comes in an extremely compact design, requiring just a fraction of space occupied by other lasers with comparable performance. Fully-integrated fast amplitude modulation and dispersion pre-compensation make it a perfect fit for multi-photon applications in microscopy or 3D nanoprinting.