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KD*P Pockels Cells
Low voltage, large aperture Q-switching devices
The KD*P Pockels cell is a laser modulation component based on the electro-optic effect of the DKDP crystal.The products can be divided into transverse and longitudinal types based on the direction of the electro-optical effect.
The transverse type KD*P Pockels cell operates with the direction of light propagation perpendicular to the electric field. We can control the number and size of electro-optical crystals, which can effectively reduce the operating voltage to the hundred-volt level and realize the MHz repetition frequency.
The longitudinal type products operate with the direction of light propagation parallel to the electric field. CASTECH's team has developed longitudinal KD*P Pockels cell with excellent optical uniformity, high extinction ratio and high transmittance.
Applications:
●Q-switching
●Regenerative amplifier
●Cavity dumping
●Beam chopper
●Pulse picker
●Optical power stabilizer
CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.
Products
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KD*P Pockels Cells
- Low voltage, large aperture Q-switching devices
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Low voltage, large aperture Q-switching devices
The KD*P Pockels cell is a laser modulation component based on the electro-optic effect of the DKDP crystal.The products can be divided into transverse and longitudinal types based on the direction of the electro-optical effect.
The transverse type KD*P Pockels cell operates with the direction of light propagation perpendicular to the electric field. We can control the number and size of electro-optical crystals, which can effectively reduce the operating voltage to the hundred-volt level and realize the MHz repetition frequency.
The longitudinal type products operate with the direction of light propagation parallel to the electric field. CASTECH's team has developed longitudinal KD*P Pockels cell with excellent optical uniformity, high extinction ratio and high transmittance.
Applications:
●Q-switching
●Regenerative amplifier
●Cavity dumping
●Beam chopper
●Pulse picker
●Optical power stabilizer
CASTECH's products are produced independently throughout the entire process and can be customized according to customer needs. Refer to the following list for standard products.
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Model Number: Longitudinal Type DPC-taq-c-b-w Transverse Type DPt-alq-b-w |
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Longitudinal |
Type (t) |
Clear Aperture (a) |
Cascade Type (q) |
Electrode type (c) |
Optional Accessories(b) |
Wavelength(w) |
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L(Longitudinal) |
8 (8 mm) 10 (10 mm) ... |
S (Single) D (Doubel) ... |
P (Pin) W (Wire) ... |
P (Polarizing prism) N (Nothing) ... |
532 nm 1030 nm 1064 nm ... |
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Transverse |
Type (t) |
Clear Aperture (a) |
Crystal Length (l) |
Cascade Type (q) |
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T (Low Repetition Frequency) H (High Repetition Frequency) |
3 (3 mm) 5 (5 mm) ... |
A (20 mm) B (25 mm) C (40 mm) ... |
D (Doubel) Q (Four) ... |
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Typical Specifications |
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Type |
Clear Aperture* |
Voltage Contrast Ratio |
Capacitance@10kHz |
λ/4 Voltage |
Rise/Fall Time** |
Cascade Type |
Transmission |
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Longitudinal |
8-15 mm |
≥1000:1 |
6~12 pF |
3.5 kV |
＜10 ns |
Single |
≥98.5% |
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Transverse |
3-5 mm |
≥500:1 |
30~80 pF |
＜1 kV |
＜20 ns |
Double |
≥98% |
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Damage threshold: 10 J/cm², 10 ns, 10 Hz |
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*Recommend to use a light spot (1/e ²) less than 0.6 times the clear aperture **The actual value is affected by the drive. |
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Housing dimensions(mm)：
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