Impact Pockels Cells (KD*P)
More than 98.5% transmission, 300–1100 nm wavelength range with active apertures 8–13 mm, and intrinsic contrast ratio of >4000:1. Pulse-picking, Q-switching, attenuation, power control in flashlamp‑pumped lasers.
Full Product Description- Optical material:
- KD*P
- Material purity:
- 99%
- Wavelength:
- 300–1100 nm
- Contrast Ratio:
- >4000:1
- Active Aperture:
- 8–13 mm
- Repetition Rate:
- 1 kHz
- Pulse Picker:
- Yes
- Q-switching:
- Yes
Product description
Historically the Impact series was the first affordable high-end Pockels Cell for flashlamp-pumped lasers, and today it offers market-leading Q-switching and pulse-picking properties with its combination of an intrinsic contrast ratio of >4000:1 at 1064 nm and a voltage contrast ratio of greater than 3500:1 at 1064 nm.
The Impact series utilizes the finest strain-free, highly deuterated KD*P available on the market, grown in our facility in Cleveland, OH, USA. The low loss KD*P crystal, as well as high damage threshold solgel and dielectric AR coatings, results in high optical damage resistance Pockels cell, needed for reliable laser intracavity use.
The sealed, nitrogen-filled, compact design with ceramic apertures and premium UV-grade fused silica windows ensures high transmission and contrast ratios over its long lifetime. The housing of the Pockels cell incorporates standard pin-type HV connectors that provide a quick connection for simplified system design and assembly.
Options
Threaded HV connectors
Applications
- Q-switching
- Pulse-picking
- Attenuation
- Power control in flashlamp-pumped lasers
- Ideal for OEM integration
- Medical and research systems
Key features
- Highest purity KD*P 99% grown by G&H in the USA.
- Intrinsic contrast ratio >4000:1 (37 dB intracavity loss when flashlamp-pumping)
- Voltage contrast ratio >3500:1 (34 dB pulse picking efficiency)
- LIDT >10 J/cm² (1064 nm, 10 ns pulse length, 10 Hz repetition rate)
- Nitrogen backfilled ensuring long lifetime
Specifications
| Name | Value |
|---|---|
| Optical material | KD*P |
| Material purity | 99% |
| Wavelength | 300–1100 nm |
| Contrast Ratio | >4000:1 |
| Active Aperture | 8–13 mm |
| Repetition Rate | 1 kHz |
| Single pass insertion loss | <1% @ 1064 nm |
| Voltage contrast ratio (VCR) | >3500:1 @ 1064 nm (parallel polarizers) |
| Single Pass Distortion | <λ/10 @ 1064 nm |
| Capacitance (DC) | 6 pF |
| DC quarter-wave voltage | 3.5 kV @ 1064 nm |
| LIDT | > 10 J/cm² (1064 nm, 10 ns pulse, 10 Hz, 1 mm diameter) |
| Pulse Picker | Yes |
| Q-switching | Yes |
NOTE: All Specifications above are "Typical Performance" values.
| Typical specifications | CQX 8 | CQX 9.25 | CQX 12.3 | CQX 15.5 | CQX 25 |
|---|---|---|---|---|---|
| Hard aperture diameter | 8 mm | 9.25 mm | 12.3 mm | 15.5 mm | 25 mm |
| 10-90% rise time (theoretical) into 50 Ω line | 0.8 ns | 0.8 ns | 1.1 ns | 1.1 ns | 1.1 ns |
| Typical specifications | Impact 8 | Impact 9 | Impact 10 | Impact 13 |
|---|---|---|---|---|
| Hard aperture diameter | 8 mm | 9.25 mm | 10 mm | 13 mm |
| 10-90% rise time (theoretical) into 50 Ω line | 0.8 ns | 0.9 ns | 1.1 ns | 1.1 ns |
