BBO-based pockels cell are used to change the polarization state of light passing at wavelengths from the UV to more than 2 μm, low piezoelectric ringing makes these Pockels cells attractive for the control of high-power and high pulse repetition rate lasers. The quarter-wave voltage is relative to the ratio of crystal length and electrode spacing, therefore, compact aperture devices tend to exhibit lower quarter-wave, but even for 2.5 mm aperture tools the quarter-wave voltage remains 4 kV at 1064 nm, which is quite high. Double crystal design has been used to cut down the required voltages and also to enable operation in half-wave mode with quick switching times.
Advantages:
High Repetition Rate
High peak power damage resistance
Low absorption
UV Transmission
Low Acoustic Noise
Applications:
High repetition rate DPSS Q-Switch
High repetition rate Regenerative Amplifier control
Laser Cavity Dumping
Beam Chopper
Specifications:
Typical Dimension of Pockels cell | Ф25.4*35mm | Ф25.4*40mm | Ф25.4*35mm | Ф25.4*40mm | Ф25.4*35mm | Ф25.4*40mm |
| Dimension of Crystal | 3x3x20mm | 3x3x25mm | 4x4x20mm | 4x4x25mm | 5x5x20mm | 5x5x25mm |
| Clear Aperture | Ф2.6mm | Ф2.6mm | Ф3.6mm | Ф3.6mm | Ф4.6mm | Ф4.6mm |
| Single pass optical transmission | >98% | >98% | >98% | >98% | >98% | >98% |
| Extinction Ratio@1064nm | >1000:1 (30db) | >1000:1 (30db) | >1000:1 (30db) | >1000:1 (30db) | >1000:1 (30db) | >1000:1 (30db) |
| λ/4 Voltage | 3500V | 2800V | 4900V | 3900V | 5900V | 4700V |
| Capacitance | <3.0pF | <3.0pF | <3.0pF | <3.0pF | <3.0pF | <3.0pF |
| Damage Threshold | 750MW/cm²@1064nm.10ns,10Hz | |||||
Add: No.39, Xiang Yuan Road, Gong Shu District, Hangzhou, China. P.C.310011 Tel: +86.13968086893 Fax: +86.571.88095310