High-energy 266-nm picosecond pulse generation from a narrow spectral bandwidth gain-switched LD MOPA

We generated 45-μJ 266-nm picosecond optical pulses at 100-kHz repetition rate by fourth-harmonic generation of 150-μJ, 72-ps, 1064-nm optical output from a narrow spectral bandwidth hybrid MOPA seeded by a gain-switched laser diode.