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Crystals NLO 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 (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.



 
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