KDP Crystal

• High homogeneity and optical uniformity
• Excellent internal quality

• Good UV transmission

• High optical damage threshold

• High birefringence

• Negative thermal lensing

• Top finish quality with high processing precision
• Large block for various size and shapes
• Very competitive price
• Mass production, quick delivery

• Over 20 years experience of crystal growing technique

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Product Details

Characterized by the excelent UV transmission, high damage threshold, and high birefringence, KDP (Potassium Dihydrogen Phosphate) are commonly used commercial NLO materials for doubling, tripling and quadrupling of Nd:YAG laser at room temperature or an elevated temperature. KDP are also excellent electro-optic (EO) crystals with high EO coefficients, thus popularly used as EO modulators and Pockels cells for Q-switched lasers. But KDP crystal has apparent disadvantage of being highly hygroscopic, therefore, protective coating and transmitting windows are recommended to secure the polished crystal surfaces.

WISOPTIC' KDP/KD*P WITH BEST COST PERFORMANCE IN THE WORLD

KDP Crystal.jpg

Dimensions	On customer's request (10010080mm)
Dimension Tolerance	± 0.1 mm
Angle Tolerance	≤ ± 0.25°
Flatness	< λ/8 @ 632.8 nm
Surface Quality	< 20/10 [S/D] (MIL-PRF-13830B)
Parallelism	< 20”
Perpendicularity	≤ 5'
Chamfer	≤ 0.2mm @ 45°
Transmitted Wavefront Distortion	< λ/8 @ 632.8 nm
Clear Aperture	> 90% of central area
Laser Damage Threshold	> 500 MW for 1064nm, TEM00, 10ns, 10Hz (AR-coated) > 300 MW for 532nm, TEM00, 10ns, 10Hz (AR-coated)
* Products with special requirement upon request.