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KDP-KD*P

 

磷酸二氫鉀(KDP),磷酸二氘鉀(DKDP)由于其擁有優越的紫外透過,高損傷閾值,雙折射系數高等特性,被廣泛地應用在多種工業用途(其非線性系數偏低)。這兩種晶體通常被用于做Nd:YAG激光器的二、三、四倍頻器件(室溫條件下)。另外,它們也具有電光系數高的特點,故也被用于制作Q開關等。

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
 

 

Note: Other sizes, cut angle, coating are available upon request.


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