Laser system for generating sub-nanosecond duration laser pulses

摘要

A laser system is provided for generating a series of laser pulses comprising a laser generator that supplies an injection pulse to an amplifier, the amplifier being between a first mirror and a second output mirror opposite the first mirror. An enclosed gain medium and an optical switch set near the first mirror; In the laser system, the amplifier is an unstable laser resonator, and the injection pulse is supplied to the laser resonator in synchronization with the opening of the optical switch; The series of laser pulses is characterized by including at least one pulse having a duration of 2 ns or less and an energy higher than 100 mJ and at least three times higher than the energy of any other pulse in the series.