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| Products
-> Crystal -> KDP&KD*P |
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| KDP
& KD*P |
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| KDP
and KD*P are nonlinear optical materials, characterized by high damage threshold,
good nonlinear optical coefficients and electro-optic coefficients. It can
used for doubling, tripling and quadrupling of Nd:YAG laser at room temperature,
and electro-optical modulators. |
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| Typical
Applications |
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- High
optical damage threshold and high birefringence
- Good
UV transmission
- Electro-optical
modulator and Q switches
- Second,
third, and fourth harmonic generation, frequency doubling of dyer laser
- High
power laser frequency conversion material
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| Specifications |
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| Dimension
Tolerance |
(W±0.1mm)
x (H±0.1mm) x (L±0.2mm) |
| Angle
Tolerance |
Δθ<0.5°,
ΔΦ<0.5° |
| Surface
Flatness |
<λ/8@633nm |
| Surface
Quality |
Better
than 20/10 Scratch and Dig |
| Parallelism |
<
20 arc seconds |
| Perpendicularity |
<
15 arc minutes |
| Clear
Aperture |
>
90% Central |
| Wavefront
Distortion |
<λ/4@633
nm |
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| Physical
and Optical Properties |
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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 |
| Absorptance |
0.07/cm
|
0.006/cm |
| Optical
Damage Threshold |
>5
GW/cm2 |
>3
GW/cm2 |
| Extinction
Ratio |
30dB |
| Sellmeier
Equations of KDP(λ
in
um) |
no2
= 2.259276 + 0.01008956/(λ2
- 0.012942625) + 13.005522λ2/(
λ2
- 400)
ne2
= 2.132668 + 0.008637494/(λ2
- 0.012281043) + 3.2279924λ2/(
λ2
- 400) |
| Sellmeier
Equations of K*DP( λ
in um) |
no2
= 1.9575544 + 0.2901391/(λ2
- 0.0281399) - 0.02824391λ2
+0.004977826λ4
ne2
= 1.5005779 + 0.6276034/(λ2
- 0.0131558) - 0.01054063λ2
+0.002243821λ4 |
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