A compact femtosecond wavelength-tunable OPCPA system can be built by using a novel front-end, which incorporates a spectrally broadened picosecond all-in-fiber oscillator for seeding picosecond diode-pumped solid-state (DPSS) regenerative amplifier and WLC generator.

This approach eliminates the need of seed and pump pulse synchronisation therefore greatly simplifying the system and uses all-parametric femtosecond pulse amplification stages potentially increasing the temporal contrast of final pulses.