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DKDP Pockels Cell
• Highly deuterated (>98.0%) DKDP crystal
• Compact design
• Very easy to mount and adjust
• Premium UV-grade fused silica windows
• High transmission
• High extinction ratio
• High switching-off capacity
• Broad adaptation angle
• High laser damage threshold
• Good sealing, high resistance to environment change
• Robust, long service life (two-years quality guarantee)
Potassium dideuterium phosphate DKDP (KD * P) crystal has low optical loss, high extinction ratio, and excellent electro-optical performance. DKDP Pockels cells are made by using the longitudinal effect of DKDP crystals. The modulation effect is stable and the pulse width is small. It is mainly suitable for low-repetition-frequency, low-power pulsed solid-state lasers (such as cosmetic and medical lasers).
Because DKDP crystals are prone to deliquescent and have poor mechanical properties, DKDP Pockels cell with excellent performance have extremely high requirements for the selection of DKDP material, crystal processing quality and switch assembling technique. The high performance DKDP Pockels cell developed by WISOPTIC have been widely used in high-en cosmetic and medical lasers produced by some distinguished companies in China, Korea, Europe and USA.
WISOPTIC has been granted of several patents for its technology of DKDP Pockels cells such as the integrated Pockels cell (with polarizer and λ/4 wave plate inside) which can be easily assembled into Nd:YAG laser system and helps to make laser head more compacted and cheaper.
WISOPTIC Standard Product - DKDP Pockels Cell
Model Code | Clear Aperture | Overall Dimension (mm) |
IMA8a | Φ8 mm | Φ19×24 |
IMA8b | Φ8 mm | Φ19×24.7 |
IMA10a | Φ10 mm | Φ25.4×32 |
*IMA10Pa | Φ10 mm | Φ25.4×39 |
*IMA11Pa | Φ11 mm | Φ28×33 |
IMA13a | Φ13 mm | Φ25.3×42.5 |
*P Series: with additional design for parallelism.
WISOPTIC Technical Data - DKDP Pockels Cell
Clear Aperture | 8 mm | 10 mm | 12 mm | 13 mm |
Single Pass Insertion Loss | < 2% @1064 nm | |||
Intrinsic Contrast Ratio | > 5000:1 @1064 nm | |||
Voltage Contrast Ratio | > 2000:1 @1064 nm | |||
Wavefront Distortion | < l/6@ 633 nm | |||
DC Capacitance | < 4.5 pF | < 5.0 pF | < 5.5 pF | < 8.0 pF |
DC Quarter Wave Voltage | 3200 +/- 200 V @1064 nm | |||
Single Pass Transmission | > 98.5% | |||
Laser Damage Thereshold | 750 MW/cm2 [AR coating@1064nm,10ns,10Hz] | |||
INTEGRATED DKDP POCKELS CELL(i-series)[with polarizer and wave plate inside]
Technical Data
Model Code | IMA-i8 [other types upon request] |
External Dimension | Dia. 30 (+0, -0.1 )´60 (+0.3, -0.3) mm |
Clear Aperture | Φ8 mm |
Intrinsic Contrast Ratio | > 500:1 @1064 nm |
Wavefront Distortion | < l/6 @ 633 nm |
DC Capacitance | < 4.5 pF |
DC Quarter Wave Voltage | 3200 +/- 200 V @1064 nm |
Single Pass Transmission | > 96% |
Laser Damage Thereshold | 500 MW/cm2 [AR coating @ 1064nm, 10 ns,10Hz] |
| Types | PCD-2.5V-30 | PCD-4.5V-10 | PCD-2.5V-200/FS | PCD-2.5V-100/FS |
| Maximal HV operation voltage | 3kV | 4.5kV | 3 kV | 3 kV |
| Output polarity | Negative | Negative | Bipolar | Negative |
| HV pulse rise time (typical) | - | - | 7 -9 ns | - |
| HV pulse fall time (typical) | 7-9 ns | 14 -18 ns | 7 -9 ns | 7 -9 ns |
| Maximal HV pulse repetition rate | 30 kHz | 10 kHz | 200 kHz | 150 kHz |
| External triggering pulse amplitude | 3-5 V TTL (10 mA) | |||
| DC supply | 23-25 V, 1.5 A | 23-25 V, 4.5 A | ||
| HV power supply | 2.2kV, 7 W | 4 kV, 7 W | 2.2 kV, 60 W | 2.2 kV, 40 W |
