BBO Pockels Cells

BBO Pockels Cells
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BBO pockels cells (BaB2O4), also known as barium borate pockels cells. They are a pockels cells device with superior overall performance. They feature high damage threshold, low insertion loss, high extinction ratio, minimal piezoelectric ringing and competitive price.

Furthermore, they exhibit significant advantages in laser power handling capability, and temperature stability, and are largely unaffected by piezoelectric ringing.

BBO pockels cells have significant advantages in the following areas:

  • High repetition rate Q-switches
  • Pulse pickup up to 3 MHz
  • Laser cavity dumping
  • Egenerative amplifier control, and beam choppers

BBO pockels cells are a better choice than the KDP pockels cells in a high repetition rate and high power applications. They have low voltage electrical coupling factor of the BBO. They can generate pulses with a repetition frequency of several hundred kilohertz.

Features of BBO pockels cells:

  • Low absorption and noise
  • High UV transmittance
  • High repeatability and damage resistance
  • Pockels Cells with double crystal design available

Standard

BBO single crystal switch

Modle CLBBO-S02525-2035 CLBBO-S02525-151728-S CLBBO-S0320-2035 CLBBO-S0325-2035 CLBBO-S0420-2035 CLBBO-S0425-2035
CLEAR APERTURE 2.2mm 2.2mm 2.7mm 2.7mm 3.7mm 3.7mm
CRYSTAL SIZE 2.5×2.5x25mm 2.5×2.5x25mm 3x3x20 mm 3x3x25 mm 4x4x20 mm 4x4x25 mm
SHELL SIZE Dia. 20x35mm 15×17.5x28mm
Square enclosure		 Dia.20x35mm Dia.20x35mm Dia.20x35mm Dia.20x35mm
QUARTER WAVE VOLTAGE (@ 1064 nm), kV DC 2.4kV 2.4kV 3.6kV 2.9kV 4.8kV 3.9kV
CAPACITOR, pF 2.2pF 2.2pF 3pF 3pF 4pF 4pF
TRANSMITTANCE >99% >99% >99% >99% >99% >99%
WAVELENGTH RANGE 1030nm-1064nm 1030nm-1064nm 1030nm-1064nm 1030nm-1064nm 1030nm-1064nm 1030nm-1064nm
DAMAGE THRESHOLD, 10ns 10Hz 1064nm 600MW/cm2 600MW/cm2 600MW/cm2 600MW/cm2 600MW/cm2 600MW/cm2
EXTINCTION RATIO 1000:1 1000:1 1000:1 1000:1 1000:1 1000:1

 

BBO dual crystal switch

Modle CLBBO-D0320-2055 CLBBO-D0420-2055
CLEAR APERTURE 2.7mm 3.7mm
CRYSTAL SIZE 3x3x20 mm3 4x4x20 mm3
SHELL SIZE Dia.20x55mm Dia.20x55mm
QUARTER WAVE VOLTAGE (@ 1064 nm), kV DC 1.8kV 2.4kV
CAPACITOR, pF 6pF 7pF
TRANSMITTANCE >99% >99%
WAVELENGTH RANGE 1030nm-1064nm 1030nm-1064nm
DAMAGE THRESHOLD, 10ns 10Hz 1064nm 600MW/cm2 600MW/cm2
EXTINCTION RATIO 300:1 300:1

Pockels Cell Specifications

Clear Aperture
To be confirmed
Transmittance
>98%
Damage Threshold
500MW/cm2@10ns 1064nm
Wavefront Distortion
<λ/8 @1064nm
Typical Capacitance<3pF
Shell Sizeφ25.4×44mm
Quarter-wave Voltage
3.4kv

BBO Physical Properties

Crystal Structure
Trigonal，space group R3c，point group 3m
Lattice Constant

a=b=12.532Å,c=12.717Å,Z=6
Melting Point
1095±5℃
Phase Transformation Point
925±5℃
Optical Homogeneityδn～10-6cm
Mohs Hardness
4
Density
3.85g/cm3
Hygroscopicity
Low
Thermal Coefficient of Expansiona:4×10-6K，c:36×10-6K
Thermal Conductivity
⊥C:1.2W/m/k , ∥C:1.6W/m/K
Absorption Coefficient<0.1%/cm @1064nm

BBO Optical Properties

Transparency Range189-3500nm
Refractive Index
1064nm no=1.6545,ne=1.5392
800nm no=1.6606,ne=1.5444
532nm no=1.6742,ne=1.5547
400nm no=1.6930,ne=1.5679
Thermo-optical Coeffecient
dno/dT=-9.3×10-6/℃
dne/dT=-16.6×10-6/℃
Electro-optic Coefficient
γ11=2.7pm/V,γ22,γ31<0.1γ11
Half-wave Voltage
48KV @1064nm
NLO Coefficientd11=5.8×d36(KDP)
d31=0.05×d11
d22<0.05×d11
Phase Matching SH Wavelength189-3500nm

Structure Diagram

BBO Pockels Cells Structure Diagram 1－CRYLINKBBO Pockels Cells Structure Diagram 2 - CRYLINK

Related product(s) with BBO:

bbo-electro-optic-crystal CL-PCDS-01-Pockels-cell-low-re
Electro Optic Crystal BBO CL-PCDS-01 Pockels Cell Low Repetition Rate Drive
CL-HVPC-01-High-Voltage-Power-Supply CL-HVPC-02-Pockels-cell-high-repetition-rate-drive
CL-HVPC-01 High Voltage Power Supply CL-HVPC-02 Pockels Cell High Repetition Rate Drive

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