BBO Pockels Cells

Features:

  • minimal piezoelectric ringing
  • low absorption
  • ceramic aperture is available
  • broad transmission range from 200 nm to 2000 nm
  • compact size

Applications:

  • high repetition rate DPSS Q-switch
  • high repetition rate regenerative amplifier control
  • cavity dumping
  • beam chopper

Pockels cell are used to change the polarization state of light passing through it when a voltage is applied to the electrodes of  electro-optic crystals such as BBO. When used in conjunction with polarizer, Pockels cells can be used as fast optical switches. Typical applications include Q-switching of the laser cavity, laser cavity dumping and coupling light into and from regenerative amplifiers.

BBO based Pockels cells can be useful 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. Fast switching electronic drivers properly matched to the cell are available for Q-switching, cavity dumping and other applications. Pockels cells of PCB series are transverse field devices. Low electro-optical coefficient of BBO results in high operating voltages. The quarter-wave voltage is proportional to the ratio of electrode spacing and crystal length. As a result, smaller aperture devices have lower quarter-wave, however even for 2.5 mm aperture devices the quarter-wave voltage is as high as 4 kV @ 1064 nm.Double crystal design is employed to reduce required voltages and to allow operation in half-wave mode with fast switching times.

Delivery

Estimated delivery time: from4 - 5 days

Clear Aperture
Quarter Wave Voltage
Wavelength

Custom Pockels Cells available from stock

Code Clear Aperture Quarter Wave Voltage Wavelength Price Delivery Add to cart
PCB3D-C-1342 ø 2.5 mm <2.4 kV DC 1342 Request 4 - 5 days To cart
PCB3S-800 ø 2.5 mm <2.6 kV DC 800 Request 4 - 5 days To cart
PCB4S-532 ø 3.5 mm <2.25 kV DC 532 Request 4 - 5 days To cart

BBO Pockels Cells with Ceramic Aperture, for 1064 nm

Code Clear Aperture Quarter Wave Voltage Wavelength Price Delivery Add to cart
PCB3D-C ø 2.5 mm <1.7 kV DC 1064 nm Request Request To cart
PCB3S-C ø 2.5 mm <3.4 kV DC 1064 nm Request 4 - 5 days To cart
PCB4D-C ø 3.5 mm <2.3 kV DC 1064 nm Request Request To cart
PCB4S-C ø 3.5 mm <4.6 kV DC 1064 nm Request 4 - 5 days To cart
PCB3D/25-C ø 2.5 mm <1.5 kV DC 1064 nm Request Request To cart
PCB3S/25-C ø 2.5 mm <3.0 kV DC 1064 nm Request Request To cart

BBO Pockels Cells with Full Aperture, for 1064 nm

Code Clear Aperture Quarter Wave Voltage Wavelength Price Delivery Add to cart
PCB3D ø 2.5 mm <1.7 kV DC 1064 nm Request Request To cart
PCB3S ø 2.5 mm <3.4 kV DC 1064 nm Request Request To cart
PCB4D ø 3.5 mm <2.3 kV DC 1064 nm Request Request To cart
PCB4S ø 3.5 mm <4.6 kV DC 1064 nm Request 4 - 5 days To cart
PCB3D/25 ø 2.5 mm <1.5 kV DC 1064 nm Request Request To cart
PCB3S/25 ø 2.5 mm <3.0 kV DC 1064 nm Request Request To cart

Other wavelengths are available under request

Delicious
Model PCB3S PCB3D PCB3S/25 PCB3D/25 PCB4S PCB4D
Clear aperture diameter, mm 2.5 2.5 2.5 2.5 3.5 3.5
Crystal size (WxHxL), mm 3x3x20 3x3x20 3x3x25 3x3x25 4x4x20 4x4x20
Quantity of crystals 1 2 1 2 1 2
Quarter-wave voltage (@ 1064 nm), kV DC <3.4 <1.7 <3.0 <1.5 <4.6 <2.3
Capacitance, pF 4 6 4 6 3 6
Optical transmission, % >98 >98 >98 >98 >98 >98
Contrast ratio 1) >1:1000 >1:500 >1:1000 >1:500 >1:1000 >1:500
Cell size, mm Ø25.4x37.2 Ø25.4x57.2 Ø25.4x42.2 Ø25.4x67.2 Ø25.4x37.2 Ø25.4x57.2

All crystals for the Pockels cells provided above are coated AR/AR@1064 nm. Other antireflection coatings are available under request. Damage threshold >5 J/cm2 for 10 ns pulses at 1064 nm.


Model PCB3S-1342 PCB3D-800 PCB3S-532
Clear aperture diameter, mm 2.5 2.5 2.5
Crystal size (WxHxL), mm 3x3x20 3x3x20 4x4x20
Quantity of crystals 2 1 1
Quarter-wave voltage, kV DC <2.4 <2.6 <2.25
Wavelength, nm 1342 800 532
Capacitance, pF 6 4 4
Optical transmission, % >98 >98 >98
Contrast ratio 1) >1:500 >1:1000 >1:1000
Cell size, mm Ø25.4x57.2 Ø25.4x37.2 Ø25.4x37.2

1) Measured by crossed polarizers method

Specifications are subject to changes without advance notice.

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