Nanosecond-to-picosecond pulse compression with fiber gratings in a compact fiber-based chirped-pulse-amplification system

A chirped, 12-cm-long fiber Bragg grating with 10-nm spectral bandwidth was employed in place of a conventional diffraction grating pair compressor in a compact fiber-based high-energy chirped-pulseamplification system. Initial nanosecond chirped pulses from a fast-tuned laser diode were compressed to produce 1.9-ps-long, 300-nJ pulses.