Русский
Deutsch
Español
Français
BBO E-O Q-Switch
Hight contrast ratios: >30 dB typically
High Transmission (e.g. at 1064nm): >98.5%
Plenty options of clear aperture: 2~ 8 mm
Low capacitance: 3 pF~ 10 pF
High damage threshold: >1GW/cm2 at 1064nm (t = 10ns)
Long and proven lifetime, 2 years guarantee
20 year experience servicing the most demanding laser applications
KDP, KD*P, KTP, RTP, BBO, and LN are grown by WISOPTIC in-house
Being purchased and trusted by dozens of laser companies worldwide
BBO（Beta-Barium Borate, β-BaB2O4）based Pockels cells operate from approximately 0.2 - 1.65 µm and are not subject to tracking degradation. BBO exhibits low piezoelectric response, good thermal stability, and low absorption. Low piezoelectric ringing makes this Pockels cell attractive for the control of high-power and high-pulse repetition rate (hundreds of kilohertz, up to 1MHz) lasers. These Pockels cells work in regenerative amplifiers, high pulse repetition rate micro-machining lasers and high-average power lasers for material processing and metal annealing.
The quarter-wave voltage of BBO Pockels cell is relative to the ratio of crystal length and electrode spacing. Thus, compact aperture devices tend to exhibit a lower quarter-wave. But even for 2.5 mm aperture tools, the quarter-wave voltage remains 4kV at 1064nm. 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.
WISOPTIC has been granted of dozens of patents for its technology of BBO Pockels cells. WISOPTIC’s mass products of BBO Pockels cell are gaining worldwide customers’ interest and trust for its high cost performance. Power supply and driver for BBO Pockels cell is also available.
Clear Aperture Diameter (mm) | 2.5 | 3.5 | 4.5 | 5.5 | 6.5 | |||||
Crystal Size (mm) | 3x3x20 | 3x3x25 | 4x4x20 | 4x4x25 | 5x5x20 | 5x5x25 | 6x6x20 | 6x6x25 | 7x7x20 | 7x7x25 |
Quarter-wave Voltage (kV) (@1064 nm, DC) | 3.5 | 2.8 | 4.9 | 3.9 | 5.9 | 4.7 | 7.3 | 5.8 | 8.0 | 6.45 |
Capacitance | 3 -10 pF | |||||||||
Optical Transmission | > 98.5% | |||||||||
Contrast Ratio | > 1:1000 (30 dB) | |||||||||
Cell size (mm) (Dia x Length) | 25.4x35 | 25.4x40 | 25.4x35 | 25.4x40 | 25.4x35 | 25.4x40 | 25.4x35 | 25.4x40 | 30.0x35 | 30.0x40 |
Damage Threshold | 1 GW/cm2 (1064 nm,10 ns,10 Hz) | |||||||||
