KD*P crystal is widely applied for electro-optic application as Q-switch and Pockels cells. KD*P is routinely used for Q-switching applications from the uv out to about 1.1 µm where absorption limits its use in active cavities, although it can be useful at longer wavelengths when a few percent of absorption can be tolerated. KD*P has high optical uniformity and is useful for large aperature applications.
The device of longitudinal Pockels' cell using crystal of >98% deuterated DKDP is normally used for Q-switch of laser radiation. These Pockels' cells are manufactured from the crystals that have been specially selected for their low optical loss and strain free property. The crystal is in the form of a cylinder and two silver ring electrodes are used to produce the longitudinal electric field.
High Damage Threshold
High Extinction and Contrast Ratio
Physical and Chemical Properties:
Please view E-O crysals physical Properities (dpf format)
The Sellmeier equations (l in µm ):
no2 = 1.9575544 + 0.2901391/(l2 - 0.0281399) - 0.02824391l2
ne2 = 1.5005779 + 0.6276034/(l2 - 0.0131558) - 0.01054063l2
Optical and Spectral Properties:
Please view E-O crysals optical and electric-optical Properities (dpf format)
|Surface quality: Scratch/Dig
||better than 20 arc sec.
||better than 15 arc min
||△q < 0.5°, △f < 0.5°
||>90% central area
|Transmitting wavefront distortion:
||less than l/8 @ 633nm
The AR coating on DKDP crystals is available from us.