Laser operation at 1.3 μm of 2at.% doped crystalline Nd:YAG in a bounce geometry and second harmonic generation

This paper reports for the first time high power laser operation in Czochralski grown 2at.% doped crystalline Nd:YAG at 1.3 μm by use of the bounce amplifier geometry. The 1.3 μm fundamental output from the laser was frequency doubled externally in an LBO second harmonic crystal to generate red light. Three different second harmonic frequencies could be observed at 659 nm, 669 nm and 664 nm.