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Crystals of KDP (KH2PO4), DKDP or D*KDP (KD2PO4) and ADP (NH4H2PO4) are grown by a water-solution method and can be grown up to very large size. Therefore, they are as low-cost and large-size finished non-linear components available.
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Crystals of KDP (KH2PO4), DKDP or D*KDP (KD2PO4) and ADP (NH4H2PO4) are grown by a water-solution method and can be grown up to very large size. Therefore, they are as low-cost and large-size finished non-linear components available.


Advantages of KDP

Good UV transmission.  

High damage threshold.

High birefringence.  

Low cost.

Large size available.

Applications of KDP

The second, third and fourth harmonic generators for Nd: YAG and Nd:YLF lasers.

Electro-optical applications as Q-switches for Nd:YAG, Nd:YLF, Ti:Sapphire and alexandrite lasers

For pockels cells and as for acousto-optical applications

Frequency-doubling (SHG) and -tripling (THG) of Nd:YAG laser at 1064 nm

Frequency - quadrupling (4HG, output at 266 nm) of Nd:YAG laser



KDP Crystal Specification or or based on clients' requirements


Material:

Domestic or foreign materials are selected based on clients' requests

Size（W*H）mm

1x1~ customization

Length(L)mm

0.05~ customization

Phase Matching Angle(θ,φ)

Angel or according to customer request

Match Type:

Type I or Type II

Angle tolerance:

Δθ<±0.2°; Δφ<±0.2°

Size tolerance:

(W ±0.1mm) x (H ±0.1mm) x (L +0.2mm/-0.1mm)

Flatness:

L/10

Surface quality:

10-5

Parallelism:

10 arc secs

Perpendicularity:

10 arc min

Wavefront Distortion:

L/10

Clear Aperture:

>90%

Coating:             ;                               &nbsp;                

Broad Band AR-coatings