Description
RTP may also be used in a single-crystal configuration for phase-modulation, taking advantage of the high r33 electro-optic coefficient. In this case, the laser emission is polarised along the crystal’s Z-axis and the optical length of the crystal can be precisely adjusted by the voltage applied between the Z-sides.
The following features make RTP a good material for phase-modulation:
- No water-sensitiveness
- High electro-optic constant
- No piezo or pyro-electric effects
