Crystal in holder Nd:YAG 1064 nm

The plane-parallel YAG rod is located in an exchangeable mount. A coating, which is highly reflective at the laser wavelength of 1064 nm, has been placed onto one end of the rod which also forms the left resonator mirror. The coating is designed in such a way that the maximum pump-light radiation can penetrate the highly reflective layer with only 20% losses. The other end of the rod is coated with a high-quality antireflection layer for 1064 nm in order to keep the internal resonator losses as low as possible. In addition the back side of the Nd:YAG rod is coated with a high reflective layer for 532 nm in order to redirect the green light to the output of the resonator.