Introduction
Potassium Dihydrogen Phosphate (KDP) and Potassium
Dideuterium Phosphate (KD*P
) are among the most widely-used commercial NLO
materials. They are commonly used for doubling,
tripling and quadrupling of Nd:YAG laser at the
room temperature. In addition, they are also excellent
electro-optic crystals with high electro-optic coefficients,
widely used as electro-optical modulators, Q-switches,
and Pockels Cells, etc.
Good UV transmission High optical damage threshold High birefringence High nonlinear coefficients Physical and Chemical Properties:
Please view NLO 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 NLO crysals optical and nonlinear optical Properities (dpf format) Application:
Second, third, and fourth harmonic generation of Nd:lasers. Frequency doubling of dyer laser
High power laser frequency conversion materials Shutter for high speed photography
Electro-optical modulator and Q switches
KD*P Single Crystals — Standard |
Designation |
Operation |
Input |
Output |
53.7° |
SHG (II) |
1064 nm |
532 nm |
59.5° |
THG (II) |
1064 nm + 532 nm |
355 nm |
86° |
FHG (I) angle tune |
532 nm |
266nm |
90° |
FHG (I) temp. tune |
532 nm |
266 nm |
KD*P Specifications
Wavefront
distortion: |
less
than l/8
@ 633nm |
Dimension
tolerance: |
(W±
0.1mm) x (H±0.1mm)
x (L + 0.2mm/-0.1mm) |
Clear
aperture: |
> 90% central area |
Flatness: |
l/8
@ 633nm |
Scratch/Dig
code: |
10/5
to MIL-O-13830A |
Parallelism: |
better
than 20 arc seconds |
P
erpendicularity: |
5
arc minutes |
Angle
tolerance: |
Dq
<±
0.3°,
Df
<±0.3° |
Quality
Warranty Period: |
one
year under proper use |
Note:
The AR coating on DKDP crystals is available from us. Note: The LiIO3 crystals is available
too. |