A gain-coefficient switched Alexandrite laser
  We report on a gain-coefficient switched Alexandrite laser. An electro-optic modulator is used to switch between high and low gain states by making use of the polarization dependent gain of Alexandrite. In gain-coefficient switched mode, the laser produces 85 ns pulses with a pulse energy of 240 mJ at a repetition rate of 5 Hz. 
Chris J. Lee, Peter J. M. van der Slot, and Klaus-J. Boller
physics.optics