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KDP | SIMTRUM Photonics Store

Products / Optics /Crystals /Nonlinear Optical Crystals /KDP /
KDP
Overview Specification Order Now!

LBO Nonlinear Optical Crystal.jpg

Potassium Dihydrogen Phosphate(KDP), like DKDP(Potassium Dideuterium Phosphate) is a non-linear optical material that is usually used for doubling, tripling and quadrupling of Nd:YAG laser at the room temperature. Possessing the same large NLO(nonlinear optical materials) coefficient, wide transparency range, and high optical damage threshold, they are also excellent materials for electro-optical modulators, Q-switches and Pockels cells.


The key difference between KDP & DKDP would be the slightly different curie points and relative dielectric constants, and transparency range. Normally, KDP is preferred for fourth harmonic pulse matching.


General Specifications

Material

KDP

Dimension Tolerance(mm)

±0.1

Surface Quality

10/5

Flatness

<λ/6@633nm

Wavefront Distortion

λ/8

Parallelism(arcsec)

<20

Damage Threshold(pulsed)

5000MW/cm2

Mount

Unmounted



Physical and Optical Properties

Chemical formula

KH2PO4

Symmetry

42m

Hygroscopicity

high

Density, g/cm3

2.332

Thermal conductivity, W/cm×K

 k11= 1.9×10-2

Thermal expansion coefficients, K-1

a11 = 2.5×10-5

a33 = 4.4×10-5

Transmission range, µm

0.18-1.5

Residual absorption, cm-1 (at 1.06 µm)

0.04

Measured refractive index (at 1.06 µm)

 no= 1.4938

 ne= 1.4599

Sellmeier coeff., λ – wavelength in µm

                A

2.259276

2.132668

                B

13.00522

3.2279924

                C

400

400

                D

0.01008956

0.008637494

                E

0.012942625

0.012281043

Nonlinear coeff. d36 , pm/V (at 1.06 µm)

0.43

Effective nonlinear coefficient

                      Type 1

                      Type 2

 

  doee = d36 × sinθ × sin2φ

  deoe = d36 × sinθ × cos2φ

Laser damage threshold, GW/cm-1 at 1.06 µm

10 ps – 100

1 ns – 10

15 ns – 14.4



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Dimension (mm)


Search Reset
Compare Model Drawings & Specs Dimension (mm) Thickness (mm) Availability Reference Price
(USD)
KDP-NLC-90/45-5-0.1
KDP, Non-Linear Crystal, (Θ/φ)=90/45, Dimension=5x5mm, Thickness=0.1mm 		5x50.1 2-3 Weeks Request for quote
KDP-NLC-76.5/45-1-5
KDP, Non-Linear Crystal, (Θ/φ)=76.5/45, Dimension=12x12mm, Thickness=0.1mm 		12x125 2-3 Weeks Request for quote
KDP-NLC-76.5/45-1-7
KDP, Non-Linear Crystal, (Θ/φ)=76.5/45, Dimension=15x15mm, Thickness=0.1mm 		15x157 2-3 Weeks Request for quote
KDP-NLC-68.1/45-1-0.45
KDP, Non-Linear Crystal, (Θ/φ)=68.1/45, Dimension=14x14mm, Thickness=0.1mm 		14x14 2-3 Weeks Request for quote

KDP-NLC-68.1/45-1-0.45 - Parameter

Thickness Tolerance (mm)
± 0.1

Surface Quality
10/5

Clear Aperture
>90%

Dimension (mm)
14x14

Dimensional Tolerance (mm)
±0.1

Thickness (mm)

Flatness
<λ/6@633nm

Wavefront Distortion
λ/8

Parallelism (arcsec)
<20

KDP-NLC-76.5/45-1-7 - Parameter

Thickness Tolerance (mm)
± 0.1

Surface Quality
10/5

Clear Aperture
>90%

Dimension (mm)
15x15

Dimensional Tolerance (mm)
±0.1

Thickness (mm)
7

Flatness
<λ/6@633nm

Wavefront Distortion
λ/8

Parallelism (arcsec)
<20

KDP-NLC-76.5/45-1-5 - Parameter

Thickness Tolerance (mm)
± 0.1

Surface Quality
10/5

Clear Aperture
>90%

Dimension (mm)
12x12

Dimensional Tolerance (mm)
±0.1

Thickness (mm)
5

Flatness
<λ/6@633nm

Wavefront Distortion
λ/8

Parallelism (arcsec)
<20

KDP-NLC-90/45-5-0.1 - Parameter

Thickness Tolerance (mm)
± 0.1

Surface Quality
10/5

Clear Aperture
>90%

Dimension (mm)
5x5

Dimensional Tolerance (mm)
±0.1

Thickness (mm)
0.1

Flatness
<λ/6@633nm

Wavefront Distortion
λ/8

Parallelism (arcsec)
<20

KDP-NLC-68.1/45-1-0.45 - Download

KDP-NLC-76.5/45-1-7 - Download

KDP-NLC-76.5/45-1-5 - Download

KDP-NLC-90/45-5-0.1 - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)

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