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Products / 光学元件 /晶体 /非线性光学晶体 /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)	n_o= 1.4938 n_e= 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	d_oee = d₃₆ × sinθ × sin2φ d_eoe = 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

	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	5x5	0.1	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	12x12	5	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	15x15	7	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)

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)

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

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