DKDP

Crystals

DKDP

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.

The Sellmeier equations (l in µm ):
no2=1.9575544+0.2901391/(l 2-0.0281399)-0.02824391l 
ne2=1.5005779+0.6276034/(
l 2-0.0131558)-0.01054063l 2 


Optical and Spectral Properties:
Please view NLO crysals optical and nonlinear optical Properities. 

Applications:
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 266 nm
90° FHG (I) temp. tune 532 nm 266 nm

 


DKDP Specifications:
Dimension tolerance (W ± 0.1 mm) x (H ± 0.1 mm) x (L + /-0.2 mm)
Transmitting wavefront distortion: lambda/8 @ 633 nm
Clear aperture: > 90% central area
Flatness: lambda/8 @ 633 nm
Scratch/Dig code: 10/5 to MIL-O-13830A
Parallelism: better than 20 arc seconds
Perpendicularity: 5 arc minutes
Angle tolerance: Δθ < ±0.3°, Δφ < ± 0.3°
Quality Warranty Period: one year under proper use.

Note:
The AR coating on DKDP crystals is available from us.