福州美扬光电有限公司可提供各种规格的高质量,大尺寸的KDP晶体. 欢迎电询！

磷酸二氢钾(KDP),磷酸二氘钾(DKDP)由于其拥有优越的紫外透过,高损伤阈值,双折射系数高等特性,被广泛地应用在多种工业用途(其非线性系数偏低)。这两种晶体通常被用于做Nd:YAG激光器的二、三、四倍频器件（室温条件下）。另外，它们也具有电光系数高的特点，故也被用于制作Q开关等。


Capabilities:


Width x Length:

1x1 ~ 16x16mm

Lenght:

0.02 ~ 20mm


Specifications:


Angle tolerance:

Δθ< ± 0.5°; Δφ< ±0.5°

Dimensional Tolerance:

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

Flatness:

<λ/8 at 633nm

Surface Quality:

20/10 Scracth/Dig

Parallelism:

< 20 arc seconds

Perpendicularity:

< 5 arc minutes

Wavefront Distortion:

<λ/8 at 633nm

Clear Aperture:

Central 95%

Chamfer:

0.15x45°

Coating:

* Protective coating is required to prevent polished surfaces from fogging.
* Anti-reflective coating should be considered if low reflectivity is required.


Properties: 


KDP

KD*P

Chemical Formula

KH2PO4

KD2PO4

Transparency Range

200-1500nm

200-1600nm

Nonlinear Coefficients

d36=0.44pm/V

d36=0.40pm/V

Refractive Index (at 1064nm)

no=1.4938, ne=1.4599

No=1.4948, ne=1.4554

Electro-Optical Coefficients

r41=8.8pm/V 
r63=10.3pm/V

r41=8.8pm/V
r63=25pm/V

Longitudinal Half-Wave Voltage:

Vp=7.65KV(l=546nm)

Vp=2.98KV(l=546nm)

Absorptance:

0.07/cm

0.006/cm

Optical Damage Threshold:

>5 GW/cm2

>3 GW/cm2

Extinction Ratio:

30dB

30dB

Sellmeier Equations of KDP:
no2 = 2.259276 + 0.01008956/(l2 - 0.012942625) + , 13.005522,, l, 2/(l2 - 400) 
ne2 = 2.132668 + 0.008637494/(l2 - 0.012281043) + 3.2279924l2/(l2 -, 400)


Sellmeier Equations of DKDP
no2 = 1.9575544 + 0.2901391/(l2 - 0.0281399) - 0.02824391l2 +0.004977826l4
ne2 = 1.5005779 + 0.6276034/(l2 - 0.0131558) - 0.01054063l2 +0.002243821l4