KTP Crystal with Adjustment Holder, green

To add the exciting second harmonic generation to the Diode pumped Nd:YAG laser this module is required. A KTP crystal is set into a C25 mount and inserted into the four axes adjustment holder. The crystal can be turned around its axis to obtain the phase matching condition. Furthermore the crystal can be shifted in XY and two orthogonal angles for best alignment with respect to the Nd:YAG laser cavity.
The BG39 filter is needed extra to separate the green radiation from the residual pump and Nd:YAG laser light. The power of the green radiation is measured versus the injection current or the Nd:YAG fundamental wave shows the typical quadratic characteristic.