Compact Laser System with a ～1-mJ, 1-ns Output at a Multi-kHz Repetition Rate

摘要

We demonstrate and optimize, for a mJs release, the operation of a compact laser system designed in the form of a hybrid Q-switched Nd~(3+):YAG/Cr~(4+):YAG microchip laser seeding an Yb-doped specialty (GTWave-based) fiber amplifier. A gain factor as high as ～25 dB is achieved for nanosecond single-mode pulses at a 1-10-kHz repetition rate as the result of optimization.